首页 > 最新文献
paperpass

Current Research in Green and Sustainable Chemistry最新文献

英文 中文
Bio-derived carbon sphere-modified BiOCl/BiOI heterostructures for photocatalytic treatment of real wastewater 生物衍生碳球改性BiOCl/BiOI异质结构光催化处理实际废水
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-06-16 DOI: 10.1016/j.crgsc.2026.100528
Chuanjiang Pan, Chaiyan Chaiya, Sasiradee Jantasee
Bio-derived carbon sphere-modified BiOCl/BiOI heterostructures were synthesized via a one-pot solvothermal route to achieve simultaneous interfacial phase alignment and defect engineering. The glucose-derived carbon spheres (GCS) acted as a morphogenetic soft template, inducing a structural evolution into 3D hollow spheres while generating in situ carbon quantum dot (CQD)-like domains. These nanoscale carbon domains establish continuous interfacial charge-transfer channels, suppressing photogenerated carrier recombination. The optimized GCS–BiOCl0.85I0.15 composite exhibited a narrowed bandgap, reduced charge-transfer resistance, and enhanced photocurrent density. The composite achieved enhanced total organic carbon (TOC) removal for both rhodamine B and tetracycline compared to pristine BiOCl. When evaluated in primary-treated municipal wastewater matrices across different batches, the catalyst maintained robust performance, achieving approximately 50% TOC removal within 40 min without substantial photocorrosion or significant elemental leaching. Post-treatment phytotoxicity assays using Lactuca sativa and Vigna radiata confirmed a significant reduction in effluent toxicity. This work demonstrates the potential of integrating halogen-modulated heterojunctions with carbon-assisted defect tuning for realistic wastewater remediation, while acknowledging the need for further synthesis optimization to enhance overall process sustainability.
采用一锅溶剂热法合成了生物源碳球修饰的BiOCl/BiOI异质结构,同时实现了界面相对准和缺陷工程。葡萄糖衍生碳球(GCS)作为形态发生软模板,诱导结构演化为三维空心球,同时生成原位碳量子点(CQD)样结构域。这些纳米级碳畴建立了连续的界面电荷转移通道,抑制了光产生的载流子重组。优化后的GCS-BiOCl0.85I0.15复合材料具有窄带隙、电荷转移电阻降低、光电流密度增强等特点。与原始BiOCl相比,该复合材料对罗丹明B和四环素的总有机碳(TOC)去除效果更好。当在不同批次的初级处理的城市废水基质中进行评估时,催化剂保持了强大的性能,在40 min内实现了约50%的TOC去除,没有发生严重的光腐蚀或显著的元素浸出。处理后的植物毒性试验使用油菜和紫花苜蓿证实了废水毒性的显著降低。这项工作证明了将卤素调制异质结与碳辅助缺陷调谐集成到现实废水修复中的潜力,同时承认需要进一步的合成优化以提高整体工艺的可持续性。
{"title":"Bio-derived carbon sphere-modified BiOCl/BiOI heterostructures for photocatalytic treatment of real wastewater","authors":"Chuanjiang Pan,&nbsp;Chaiyan Chaiya,&nbsp;Sasiradee Jantasee","doi":"10.1016/j.crgsc.2026.100528","DOIUrl":"10.1016/j.crgsc.2026.100528","url":null,"abstract":"<div><div>Bio-derived carbon sphere-modified BiOCl/BiOI heterostructures were synthesized via a one-pot solvothermal route to achieve simultaneous interfacial phase alignment and defect engineering. The glucose-derived carbon spheres (GCS) acted as a morphogenetic soft template, inducing a structural evolution into 3D hollow spheres while generating in situ carbon quantum dot (CQD)-like domains. These nanoscale carbon domains establish continuous interfacial charge-transfer channels, suppressing photogenerated carrier recombination. The optimized GCS–BiOCl<sub>0.85</sub>I<sub>0.15</sub> composite exhibited a narrowed bandgap, reduced charge-transfer resistance, and enhanced photocurrent density. The composite achieved enhanced total organic carbon (TOC) removal for both rhodamine B and tetracycline compared to pristine BiOCl. When evaluated in primary-treated municipal wastewater matrices across different batches, the catalyst maintained robust performance, achieving approximately 50% TOC removal within 40 min without substantial photocorrosion or significant elemental leaching. Post-treatment phytotoxicity assays using <em>Lactuca sativa</em> and <em>Vigna radiata</em> confirmed a significant reduction in effluent toxicity. This work demonstrates the potential of integrating halogen-modulated heterojunctions with carbon-assisted defect tuning for realistic wastewater remediation, while acknowledging the need for further synthesis optimization to enhance overall process sustainability.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"13 ","pages":"Article 100528"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148571202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilising Dairy and Whisky Manufacture By-products for Microalgal Lipids Production 利用乳制品和威士忌生产副产品生产微藻脂
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-04-06 DOI: 10.1016/j.crgsc.2026.100516
Bozena McCarthy , Nissreen Abu-Ghannam , Graham O'Neill
Microalgae are increasingly recognised as a renewable and sustainable source of both unsaturated and saturated fatty acids (SFAs), offering a viable alternative to traditional animal fats and plant oils. By-products of food production, such as whey from cheese production andDSG obtained from whiskey production, were found to be nutrient-dense streams and have potential for valorisation. Both whey and DSG were found to contain varied concentrations of nutrients, especially nitrate, phosphate and sugars and were shown to support microalgal growth and production of various fatty acids. C. vulgaris achieved 4.27 ± 0.31 g/L biomass when grown in whey. It also outperformed T. lutea in lipid production in DSG with significantly higher (p < 0.05) lipid synthesis on day 19, achieving a total fatty acid content of 308.20 ± 106.49 mg/g biomass dw. Both microalgae strains produced SFAs such as palmitic acid (C16:0), stearic acid (C18:0) and oleic acid (C18:1 cic-9) MUFA in whey and DSG. Additionally, T. lutea produced lauric acid (C12:0), myristic acid (C14:0) and unsaturated palmitoleic acid (C16:1 ω-7) in whey and DSG to varying degrees. The findings indicate that microalgae can produce a distinct range of fatty acids when cultivated in both whey and DSG. The present study aims to evaluate the efficiency of microalgae in lipid production and the ability to synthesise a variety of fatty acids when utilised for the valorisation of various substrates.
微藻越来越被认为是不饱和和饱和脂肪酸(sfa)的可再生和可持续来源,为传统动物脂肪和植物油提供了可行的替代品。食品生产的副产品,如奶酪生产中的乳清和威士忌生产中获得的dsg,被发现是营养密集的流,具有增值的潜力。乳清和DSG都含有不同浓度的营养物质,特别是硝酸盐、磷酸盐和糖,并被证明支持微藻生长和各种脂肪酸的产生。C. vulgaris在乳清中生长的生物量为4.27±0.31 g/L。在DSG中,黄叶茶的脂肪合成也优于黄叶茶,第19天的脂肪合成显著高于(p < 0.05),总脂肪酸含量为308.20±106.49 mg/g生物质日重。两种微藻菌株在乳清和DSG中均产生棕榈酸(C16:0)、硬脂酸(C18:0)和油酸(C18:1柠檬酸-9)MUFA等SFAs。此外,叶黄素在乳清和DSG中不同程度地产生月桂酸(C12:0)、肉豆蔻酸(C14:0)和不饱和棕榈油酸(C16:1 ω-7)。研究结果表明,当在乳清和DSG中培养时,微藻可以产生不同范围的脂肪酸。本研究旨在评估微藻在脂质生产中的效率,以及当用于各种底物的增值时合成各种脂肪酸的能力。
{"title":"Utilising Dairy and Whisky Manufacture By-products for Microalgal Lipids Production","authors":"Bozena McCarthy ,&nbsp;Nissreen Abu-Ghannam ,&nbsp;Graham O'Neill","doi":"10.1016/j.crgsc.2026.100516","DOIUrl":"10.1016/j.crgsc.2026.100516","url":null,"abstract":"<div><div>Microalgae are increasingly recognised as a renewable and sustainable source of both unsaturated and saturated fatty acids (SFAs), offering a viable alternative to traditional animal fats and plant oils. By-products of food production, such as whey from cheese production andDSG obtained from whiskey production, were found to be nutrient-dense streams and have potential for valorisation. Both whey and DSG were found to contain varied concentrations of nutrients, especially nitrate, phosphate and sugars and were shown to support microalgal growth and production of various fatty acids. <em>C. vulgaris</em> achieved 4.27 ± 0.31 g/L biomass when grown in whey. It also outperformed <em>T. lutea</em> in lipid production in DSG with significantly higher (<em>p</em> &lt; 0.05) lipid synthesis on day 19, achieving a total fatty acid content of 308.20 ± 106.49 mg/g biomass dw. Both microalgae strains produced SFAs such as palmitic acid (C16:0), stearic acid (C18:0) and oleic acid (C18:1 cic-9) MUFA in whey and DSG. Additionally, <em>T. lutea</em> produced lauric acid (C12:0), myristic acid (C14:0) and unsaturated palmitoleic acid (C16:1 ω-7) in whey and DSG to varying degrees. The findings indicate that microalgae can produce a distinct range of fatty acids when cultivated in both whey and DSG. The present study aims to evaluate the efficiency of microalgae in lipid production and the ability to synthesise a variety of fatty acids when utilised for the valorisation of various substrates.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100516"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147656238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable biopolymer complexes of Thai durian (Durio zibethinus Murray cv. Monthong) rind pectin and rice bran protein for microencapsulation of resveratrol 泰国榴莲的可持续生物聚合物复合物。月桂果胶和米糠蛋白用于白藜芦醇微胶囊化
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-05-17 DOI: 10.1016/j.crgsc.2026.100522
Nara Yaowiwat , Karnkamol Trisopon , Worrapan Poomanee
Pectin was successfully extracted from Monthong durian rind using a hot acid extraction method, yielding 15.95 ± 2.69% and producing high-methoxyl pectin (DE 58.90 ± 0.85%) with low ash and acceptable moisture content. Structural characterization by FTIR confirmed the typical polysaccharide functional groups, while SEM and TGA analyses demonstrated slab-like morphology and moderate thermal stability, indicating suitability as an encapsulating biopolymer. Complex coacervation between brown rice protein (BRP) and durian rind pectin (DRP) was investigated as a delivery system for resveratrol. Zeta potential and turbidity analyses revealed that coacervate formation was governed by electrostatic interactions under mildly acidic conditions (pH 2.5–3.5). Effective charge neutralization and maximum coacervate formation were observed at a BRP:DRP mixing ratio of 4:1. Resveratrol-loaded microcapsules exhibited particle sizes of 2–4 μm, whereas unloaded microcapsules ranged from 700 nm to 1 μm, confirming successful incorporation of the core material. Encapsulation efficiency value of 71.9 ± 4.6% was achieved at the 4:1 ratio. Morphological analysis confirmed the formation of spherical, structurally defined microcapsules. Overall, the BRP–DRP complex coacervation system using durian rind-derived pectin provides an effective and sustainable strategy for resveratrol microencapsulation, with potential applications in functional food, nutraceutical, and cosmetic delivery systems.
采用热酸法从月通榴莲果皮中提取果胶,得率为15.95 ± 2.69%,得率58.90 ± 0.85%,灰分低,含水率可接受。FTIR的结构表征证实了多糖的典型官能团,而SEM和TGA分析显示了片状形态和中等热稳定性,表明适合作为包封生物聚合物。研究了糙米蛋白(BRP)与榴莲果胶(DRP)作为白藜芦醇传递体系的复合凝聚作用。Zeta电位和浊度分析表明,在轻度酸性条件下(pH 2.5-3.5),凝聚体的形成受静电相互作用的支配。BRP:DRP混合比例为4:1时,有效电荷中和和最大凝聚形成。负载白藜芦醇的微胶囊的粒径为2-4 μm,而未加载的微胶囊的粒径范围为700 nm至1 μm,证实了核心材料的成功结合。在4:1比例下,包封效率值为71.9 ± 4.6%。形态学分析证实形成球形,结构明确的微胶囊。总的来说,利用榴莲果胶制备的BRP-DRP复合凝聚体系为白藜芦醇微胶囊化提供了一种有效和可持续的策略,在功能食品、营养保健品和化妆品输送系统中具有潜在的应用前景。
{"title":"Sustainable biopolymer complexes of Thai durian (Durio zibethinus Murray cv. Monthong) rind pectin and rice bran protein for microencapsulation of resveratrol","authors":"Nara Yaowiwat ,&nbsp;Karnkamol Trisopon ,&nbsp;Worrapan Poomanee","doi":"10.1016/j.crgsc.2026.100522","DOIUrl":"10.1016/j.crgsc.2026.100522","url":null,"abstract":"<div><div>Pectin was successfully extracted from Monthong durian rind using a hot acid extraction method, yielding 15.95 ± 2.69% and producing high-methoxyl pectin (DE 58.90 ± 0.85%) with low ash and acceptable moisture content. Structural characterization by FTIR confirmed the typical polysaccharide functional groups, while SEM and TGA analyses demonstrated slab-like morphology and moderate thermal stability, indicating suitability as an encapsulating biopolymer. Complex coacervation between brown rice protein (BRP) and durian rind pectin (DRP) was investigated as a delivery system for resveratrol. Zeta potential and turbidity analyses revealed that coacervate formation was governed by electrostatic interactions under mildly acidic conditions (pH 2.5–3.5). Effective charge neutralization and maximum coacervate formation were observed at a BRP:DRP mixing ratio of 4:1. Resveratrol-loaded microcapsules exhibited particle sizes of 2–4 μm, whereas unloaded microcapsules ranged from 700 nm to 1 μm, confirming successful incorporation of the core material. Encapsulation efficiency value of 71.9 ± 4.6% was achieved at the 4:1 ratio. Morphological analysis confirmed the formation of spherical, structurally defined microcapsules. Overall, the BRP–DRP complex coacervation system using durian rind-derived pectin provides an effective and sustainable strategy for resveratrol microencapsulation, with potential applications in functional food, nutraceutical, and cosmetic delivery systems.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100522"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147995705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coral skeleton-alginate-biochar bead: A modified adsorbent for Cu(II) removal 珊瑚骨架-海藻酸盐-生物炭头:一种去除Cu(II)的改性吸附剂
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-03-20 DOI: 10.1016/j.crgsc.2026.100515
Anugrah Ricky Wijaya , Ulia Nur Roiniah , Rahadian Zainul , Nor Kartini Binti Abu Bakar
We developed a Ca-alginate-biochar adsorbent utilizing calcium derived from waste coral skeleton for the adsorption of copper ions (Cu2+). The coral skeleton underwent calcination at 850 °C to remove organic compounds, yielding CaO with a purity of approximately 88.15%. This was subsequently reacted with HCl to produce CaCl2, serving as a crosslinking agent for sodium alginate. Biochar, obtained via pyrolysis of coconut shell, was activated and incorporated into a 1% sodium alginate solution. The resulting mixture was then added dropwise to CaCl2 solutions of varying concentrations (0.25, 0.50, 0.75, and 1.00 M) to form Ca-alginate-biochar beads. Optimization studies examined the effects of contact time (30-240 min) and temperature (25-65 °C) on adsorption performance. Kinetic analyses were conducted using pseudo-first and second-order models, while thermodynamic parameters were determined via the Van't Hoff equation. The adsorbent's efficacy was evaluated using Cu2+ standard spike solutions and industrial electrolysis wastewater. Results indicated the optimal CaCl2 concentration was 0.5 M, yielding an adsorption capacity of 1.92 mg/g. The optimal contact time was 150 min (3.57 mg/g), and the optimal temperature was 50 °C, achieving a capacity of 6.97 mg/g and 70.1% efficiency. Application to industrial electrolysis waste demonstrated an adsorption capacity of 85.5 mg/g and 81.1% efficiency. Kinetic studies revealed conformity with the pseudo-second-order model (R2 = 0.9499), suggesting a chemisorption mechanism. Thermodynamic analysis indicated an endothermic process (ΔH° = 33.17 kJ/mol) with increased entropy (ΔS° = 92.2 J/mol·K), exhibiting a tendency towards spontaneity at elevated temperatures despite positive ΔG° values. These findings demonstrate the efficacy of coral skeleton-based Ca-alginate-biochar for Cu2+ removal from industrial waste, highlighting its potential for scalable applications.
我们开发了一种海藻酸钙-生物炭吸附剂,利用从废珊瑚骨架中提取的钙吸附铜离子(Cu2+)。珊瑚骨架在850°C下进行煅烧以去除有机化合物,得到纯度约为88.15%的CaO。它随后与盐酸反应生成CaCl2,作为海藻酸钠的交联剂。通过椰壳热解得到的生物炭被活化并掺入1%海藻酸钠溶液中。然后将所得混合物滴加到不同浓度(0.25,0.50,0.75和1.00 M)的CaCl2溶液中,形成海藻酸钙-生物炭珠。优化研究考察了接触时间(30-240 min)和温度(25-65℃)对吸附性能的影响。动力学分析采用拟一阶和二阶模型,热力学参数由范霍夫方程确定。用Cu2+标准溶液和工业电解废水对吸附剂的效果进行了评价。结果表明,最佳CaCl2浓度为0.5 M,吸附量为1.92 mg/g。最佳接触时间为150 min (3.57 mg/g),最佳温度为50℃,容量为6.97 mg/g,效率为70.1%。对工业电解废水的吸附量为85.5 mg/g,效率为81.1%。动力学研究符合拟二阶模型(R2 = 0.9499),表明其为化学吸附机制。热力学分析表明,这是一个吸热过程(ΔH°= 33.17 kJ/mol),熵增加(ΔS°= 92.2 J/mol·K),尽管ΔG°为正,但在高温下仍表现出自发的趋势。这些发现证明了基于珊瑚骨架的海藻酸钙生物炭从工业废物中去除Cu2+的功效,突出了其可扩展应用的潜力。
{"title":"Coral skeleton-alginate-biochar bead: A modified adsorbent for Cu(II) removal","authors":"Anugrah Ricky Wijaya ,&nbsp;Ulia Nur Roiniah ,&nbsp;Rahadian Zainul ,&nbsp;Nor Kartini Binti Abu Bakar","doi":"10.1016/j.crgsc.2026.100515","DOIUrl":"10.1016/j.crgsc.2026.100515","url":null,"abstract":"<div><div>We developed a Ca-alginate-biochar adsorbent utilizing calcium derived from waste coral skeleton for the adsorption of copper ions (Cu<sup>2+</sup>). The coral skeleton underwent calcination at 850 °C to remove organic compounds, yielding CaO with a purity of approximately 88.15%. This was subsequently reacted with HCl to produce CaCl<sub>2</sub>, serving as a crosslinking agent for sodium alginate. Biochar, obtained via pyrolysis of coconut shell, was activated and incorporated into a 1% sodium alginate solution. The resulting mixture was then added dropwise to CaCl<sub>2</sub> solutions of varying concentrations (0.25, 0.50, 0.75, and 1.00 M) to form Ca-alginate-biochar beads. Optimization studies examined the effects of contact time (30-240 min) and temperature (25-65 °C) on adsorption performance. Kinetic analyses were conducted using pseudo-first and second-order models, while thermodynamic parameters were determined via the Van't Hoff equation. The adsorbent's efficacy was evaluated using Cu<sup>2+</sup> standard spike solutions and industrial electrolysis wastewater. Results indicated the optimal CaCl<sub>2</sub> concentration was 0.5 M, yielding an adsorption capacity of 1.92 mg/g. The optimal contact time was 150 min (3.57 mg/g), and the optimal temperature was 50 °C, achieving a capacity of 6.97 mg/g and 70.1% efficiency. Application to industrial electrolysis waste demonstrated an adsorption capacity of 85.5 mg/g and 81.1% efficiency. Kinetic studies revealed conformity with the pseudo-second-order model (R<sup>2</sup> = 0.9499), suggesting a chemisorption mechanism. Thermodynamic analysis indicated an endothermic process (ΔH° = 33.17 kJ/mol) with increased entropy (ΔS° = 92.2 J/mol·K), exhibiting a tendency towards spontaneity at elevated temperatures despite positive ΔG° values. These findings demonstrate the efficacy of coral skeleton-based Ca-alginate-biochar for Cu<sup>2+</sup> removal from industrial waste, highlighting its potential for scalable applications.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100515"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
α-Amino acid; (±)-aspartic acid catalyzed green synthesis of 2-amino-7-hydroxy-4-aryl-4H-chromene-3-carbonitrile derivatives in aqueous medium α氨基酸;(±)-天冬氨酸在水介质中催化绿色合成2-氨基-7-羟基-4-芳基-4-铬-3-碳腈衍生物
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-01-16 DOI: 10.1016/j.crgsc.2026.100508
Farzaneh Mohamadpour
We have created a sustainable process for the green, efficient, and straightforward synthesis of 2-amino-7-hydroxy-4-aryl-4H-chromene-3-carbonitrile derivatives. A domino Knoevenagel-Michael cyclocondensation reaction is used in the procedure. A green, inexpensive, and efficient organocatalyst, α-amino acid; (±)-aspartic acid, is used to catalyze the reaction at reflux in an aqueous medium. Principles of sustainable chemistry are applied in this process. Reactions occur more quickly, producing very good to high yields. It doesn't use the chromatographic method to separate mixtures. This is a cheap and simple method. It is quick and convenient because it combines several steps into one-pot.
我们创造了一种绿色、高效、直接合成2-氨基-7-羟基-4-芳基-4- h -铬-3-碳腈衍生物的可持续工艺。该方法采用多米诺骨牌Knoevenagel-Michael环缩合反应。一种绿色、廉价、高效的有机催化剂α-氨基酸;(±)-天冬氨酸,用于在水介质中催化回流反应。在这个过程中应用了可持续化学原理。反应发生得更快,产率很高。它不使用色谱法分离混合物。这是一种既便宜又简单的方法。它既快捷又方便,因为它把几个步骤结合在一起。
{"title":"α-Amino acid; (±)-aspartic acid catalyzed green synthesis of 2-amino-7-hydroxy-4-aryl-4H-chromene-3-carbonitrile derivatives in aqueous medium","authors":"Farzaneh Mohamadpour","doi":"10.1016/j.crgsc.2026.100508","DOIUrl":"10.1016/j.crgsc.2026.100508","url":null,"abstract":"<div><div>We have created a sustainable process for the green, efficient, and straightforward synthesis of 2-amino-7-hydroxy-4-aryl-4<em>H</em>-chromene-3-carbonitrile derivatives. A domino Knoevenagel-Michael cyclocondensation reaction is used in the procedure. A green, inexpensive, and efficient organocatalyst, α-amino acid; (±)-aspartic acid, is used to catalyze the reaction at reflux in an aqueous medium. Principles of sustainable chemistry are applied in this process. Reactions occur more quickly, producing very good to high yields. It doesn't use the chromatographic method to separate mixtures. This is a cheap and simple method. It is quick and convenient because it combines several steps into one-pot.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100508"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of reactive blue 19 degradation by non-thermal plasma: evaluating the combined influence of conductivity and operational parameters via response surface methodology 非热等离子体降解活性蓝19的优化:通过响应面法评估电导率和操作参数的综合影响
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-02-12 DOI: 10.1016/j.crgsc.2026.100511
Masoud Khojasteh, Amirhossein Dehghan, Mohammad Delnavaz
This study examines the impact of multiple operational parameters on the degradation efficiency of the reactive blue 19 (RB19) dye during non-thermal plasma treatment. Electrical conductivity was examined simultaneously with other parameters, an aspect rarely addressed in previous plasma-based studies. Response surface methodology (RSM) was employed to determine the optimal conditions for dye degradation, encompassing dye concentration, applied voltage, pH, electrical conductivity, and solution volume. The results showed that a dye concentration of 30 mg/L, an applied voltage of 50 kV, a pH of 4, a conductivity of 0.045 mS/cm, and a solution volume of 10 mL achieved the highest degradation efficiency of approximately 100%. Kinetic analysis verified that RB19 degradation adheres to a second-order kinetic model, with notable interactions observed among the operational parameters. The energy efficiency for RB19 dye degradation decreases with increasing cold plasma treatment time; at a constant voltage of 50 kV, it decreases by 47% as treatment time increases from 3 to 6 min. Testing tert-butanol (TBA) and p-benzoquinone (BQ) scavengers to evaluate the effectiveness of OH• and O2•- radicals, it was concluded that the hydroxyl radical has a greater effect on the degradation of RB19. COD and TOC reductions of 50% and 29%, respectively, during the plasma oxidation process indicate that, beyond RB19 dye removal, partial mineralization of organic content was achieved.
本研究考察了多种操作参数对活性蓝19 (RB19)染料在非热等离子体处理过程中降解效率的影响。电导率与其他参数同时检测,这是以往基于等离子体的研究中很少涉及的一个方面。采用响应面法(RSM)确定染料降解的最佳条件,包括染料浓度、施加电压、pH、电导率和溶液体积。结果表明,当染料浓度为30 mg/L,施加电压为50 kV, pH为4,电导率为0.045 mS/cm,溶液体积为10 mL时,降解效率最高,约为100%。动力学分析证实,RB19降解符合二级动力学模型,各操作参数之间存在显著的相互作用。RB19染料降解的能量效率随冷等离子体处理时间的延长而降低;在50 kV恒定电压下,随着处理时间从3分钟增加到6分钟,其下降了47%。通过对叔丁醇(TBA)和对苯醌(BQ)清除剂OH•和O2•-自由基的效果评价,得出羟基自由基对RB19的降解效果更大的结论。在等离子体氧化过程中,COD和TOC分别降低了50%和29%,这表明除了去除RB19染料外,有机物含量还实现了部分矿化。
{"title":"Optimization of reactive blue 19 degradation by non-thermal plasma: evaluating the combined influence of conductivity and operational parameters via response surface methodology","authors":"Masoud Khojasteh,&nbsp;Amirhossein Dehghan,&nbsp;Mohammad Delnavaz","doi":"10.1016/j.crgsc.2026.100511","DOIUrl":"10.1016/j.crgsc.2026.100511","url":null,"abstract":"<div><div>This study examines the impact of multiple operational parameters on the degradation efficiency of the reactive blue 19 (RB19) dye during non-thermal plasma treatment. Electrical conductivity was examined simultaneously with other parameters, an aspect rarely addressed in previous plasma-based studies. Response surface methodology (RSM) was employed to determine the optimal conditions for dye degradation, encompassing dye concentration, applied voltage, pH, electrical conductivity, and solution volume. The results showed that a dye concentration of 30 mg/L, an applied voltage of 50 kV, a pH of 4, a conductivity of 0.045 mS/cm, and a solution volume of 10 mL achieved the highest degradation efficiency of approximately 100%. Kinetic analysis verified that RB19 degradation adheres to a second-order kinetic model, with notable interactions observed among the operational parameters. The energy efficiency for RB19 dye degradation decreases with increasing cold plasma treatment time; at a constant voltage of 50 kV, it decreases by 47% as treatment time increases from 3 to 6 min. Testing tert-butanol (TBA) and p-benzoquinone (BQ) scavengers to evaluate the effectiveness of OH<sup>•</sup> and O<sub>2</sub><sup>•-</sup> radicals, it was concluded that the hydroxyl radical has a greater effect on the degradation of RB19. COD and TOC reductions of 50% and 29%, respectively, during the plasma oxidation process indicate that, beyond RB19 dye removal, partial mineralization of organic content was achieved.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100511"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of sulfuric acid–catalyzed hydrolysis of paper waste sludge for bacterial cellulose biosynthesis: A sustainable approach to industrial waste valorization 硫酸催化水解造纸废污泥用于细菌纤维素生物合成的优化:工业废物增值的可持续途径
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-02-03 DOI: 10.1016/j.crgsc.2026.100510
Thuc Tri Nguyen Ngo , Long Phuoc Lieu , Tan Khang Pham , Thi My Hao Nguyen , Phuc Lan Le , Kim Quoc Cuong Pham , Nguyen Hoang Phuc To , Minh Tam Nguyen , Man Nhi Truong , Phan Thong Nguyen , Trung Hieu Lu , Nhan Tu Le Tan , Dinh Quan Nguyen
Paper waste sludge (PWS) generated by the pulp and paper industry is a cellulose-rich residue that remains largely underutilized and presents disposal challenges. In this study, an integrated chemical–biological process was developed to valorize PWS into high-value bacterial cellulose (BC) through sulfuric acid–catalyzed hydrolysis followed by fermentation with Acetobacter xylinum. The hydrolysis step was statistically optimized using a Box–Behnken design to evaluate the effects of solid-to-liquid ratio, sulfuric acid concentration, temperature, and reaction time on reducing sugar production. The optimal hydrolysis conditions were identified as a solid-to-liquid ratio of 1:31.2, sulfuric acid concentration of 8.17%, temperature of 91.3 °C, and reaction time of 6.15 h, yielding a reducing sugar concentration of 11.12 g/L with a hydrolysis efficiency of 60.64%. The resulting hydrolysate was directly utilized as the fermentation substrate without detoxification, leading to BC production of approximately 10 g/L and a sugar-to-cellulose conversion efficiency of 49.65%. Structural characterization by SEM, XRD, and FTIR revealed that the BC exhibited a dense nanofibrillar matrix, high purity, and a crystallinity index of 84%, comparable to BC produced from refined carbon sources. A simplified mass balance and preliminary economic assessment further indicated effective carbon transfer from PWS to BC, low chemical cost contribution, and compatibility with existing sludge management practices. Thus, this work demonstrates a technically robust and scalable approach for converting paper waste sludge into high-performance bacterial cellulose, supporting the valorization of industrial waste into value-added biopolymers within a circular bioeconomy.
纸浆和造纸工业产生的纸废污泥(PWS)是一种富含纤维素的残留物,在很大程度上仍未得到充分利用,并提出了处理挑战。在这项研究中,开发了一种化学-生物一体化工艺,通过硫酸催化水解,然后在木醋杆菌发酵,将PWS转化为高价值的细菌纤维素(BC)。采用Box-Behnken设计对水解步骤进行统计优化,以评估料液比、硫酸浓度、温度和反应时间对还原糖产量的影响。结果表明,最佳水解条件为料液比1:31.2,硫酸浓度8.17%,温度91.3℃,反应时间6.15 h,还原糖浓度为11.12 g/L,水解效率为60.64%。得到的水解液直接用作发酵底物,无需解毒,BC产量约为10 g/L,糖到纤维素的转化效率为49.65%。通过SEM, XRD和FTIR对BC进行结构表征,结果表明BC具有致密的纳米纤维基质,纯度高,结晶度指数为84%,与精制碳源制备的BC相当。简化的质量平衡和初步的经济评估进一步表明,从PWS到BC的碳转移有效,化学成本贡献低,并且与现有的污泥管理实践兼容。因此,这项工作展示了一种技术上稳健且可扩展的方法,可将造纸废污泥转化为高性能细菌纤维素,支持循环生物经济中工业废物转化为增值生物聚合物。
{"title":"Optimization of sulfuric acid–catalyzed hydrolysis of paper waste sludge for bacterial cellulose biosynthesis: A sustainable approach to industrial waste valorization","authors":"Thuc Tri Nguyen Ngo ,&nbsp;Long Phuoc Lieu ,&nbsp;Tan Khang Pham ,&nbsp;Thi My Hao Nguyen ,&nbsp;Phuc Lan Le ,&nbsp;Kim Quoc Cuong Pham ,&nbsp;Nguyen Hoang Phuc To ,&nbsp;Minh Tam Nguyen ,&nbsp;Man Nhi Truong ,&nbsp;Phan Thong Nguyen ,&nbsp;Trung Hieu Lu ,&nbsp;Nhan Tu Le Tan ,&nbsp;Dinh Quan Nguyen","doi":"10.1016/j.crgsc.2026.100510","DOIUrl":"10.1016/j.crgsc.2026.100510","url":null,"abstract":"<div><div>Paper waste sludge (PWS) generated by the pulp and paper industry is a cellulose-rich residue that remains largely underutilized and presents disposal challenges. In this study, an integrated chemical–biological process was developed to valorize PWS into high-value bacterial cellulose (BC) through sulfuric acid–catalyzed hydrolysis followed by fermentation with <em>Acetobacter xylinum</em>. The hydrolysis step was statistically optimized using a Box–Behnken design to evaluate the effects of solid-to-liquid ratio, sulfuric acid concentration, temperature, and reaction time on reducing sugar production. The optimal hydrolysis conditions were identified as a solid-to-liquid ratio of 1:31.2, sulfuric acid concentration of 8.17%, temperature of 91.3 °C, and reaction time of 6.15 h, yielding a reducing sugar concentration of 11.12 g/L with a hydrolysis efficiency of 60.64%. The resulting hydrolysate was directly utilized as the fermentation substrate without detoxification, leading to BC production of approximately 10 g/L and a sugar-to-cellulose conversion efficiency of 49.65%. Structural characterization by SEM, XRD, and FTIR revealed that the BC exhibited a dense nanofibrillar matrix, high purity, and a crystallinity index of 84%, comparable to BC produced from refined carbon sources. A simplified mass balance and preliminary economic assessment further indicated effective carbon transfer from PWS to BC, low chemical cost contribution, and compatibility with existing sludge management practices. Thus, this work demonstrates a technically robust and scalable approach for converting paper waste sludge into high-performance bacterial cellulose, supporting the valorization of industrial waste into value-added biopolymers within a circular bioeconomy.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100510"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-pot synthesis of 2-aminoquinazolinones through sequential microwave irradiation and electrosynthesis 序贯微波辐照和电合成一锅法合成2-氨基喹唑啉酮
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-02-19 DOI: 10.1016/j.crgsc.2026.100512
Khuyen Thu Nguyen , Mongkol Sukwattanasinitt , Sumrit Wacharasindhu
In this work, we present the first sequential microwave-electrosynthesis strategy for the efficient and environmentally friendly synthesis of 2-aminoquinazolinones in a one-pot process. The electrochemical approach employs catalytic amounts of NH4I and NaCl as a recyclable mediator-electrolyte system, without the need for external oxidants or metal reagents. Furthermore, one-pot synthetic routes starting from isatoic anhydrides or 2-aminobenzonitriles were developed by merging microwave and electrochemical methods, enabling the efficient synthesis of 2-aminoquinazolinones from diverse precursors in 38 examples with yields ranging from 40% to 98%. The process demonstrates high atom economy, good faradaic efficiency, and substantial reductions in solvent use and waste generation compared to conventional protocols. This approach is compatible with a variety of functional groups and is scalable to gram-scale synthesis without loss of efficiency. Moreover, the protocol can be successfully applied to the synthesis of both bioactive compounds and organocatalysts, highlighting its versatility and environmental benefits.
在这项工作中,我们提出了第一个顺序微波-电合成策略,用于在一锅工艺中高效和环保地合成2-氨基喹唑啉酮。电化学方法采用催化量的NH4I和NaCl作为可回收的介质-电解质体系,不需要外部氧化剂或金属试剂。此外,通过微波和电化学相结合的方法,建立了以异核酸酐或2-氨基苯并腈为起始原料的一锅合成路线,实现了38例不同前体的2-氨基喹唑啉酮的高效合成,产率在40% ~ 98%之间。与传统工艺相比,该工艺具有高原子经济性,良好的法拉第效率和溶剂使用和废物产生的大幅减少。这种方法与各种官能团兼容,并且可扩展到克级合成而不会损失效率。此外,该方案可以成功地应用于生物活性化合物和有机催化剂的合成,突出了其通用性和环境效益。
{"title":"One-pot synthesis of 2-aminoquinazolinones through sequential microwave irradiation and electrosynthesis","authors":"Khuyen Thu Nguyen ,&nbsp;Mongkol Sukwattanasinitt ,&nbsp;Sumrit Wacharasindhu","doi":"10.1016/j.crgsc.2026.100512","DOIUrl":"10.1016/j.crgsc.2026.100512","url":null,"abstract":"<div><div>In this work, we present the first sequential microwave-electrosynthesis strategy for the efficient and environmentally friendly synthesis of 2-aminoquinazolinones in a one-pot process. The electrochemical approach employs catalytic amounts of NH<sub>4</sub>I and NaCl as a recyclable mediator-electrolyte system, without the need for external oxidants or metal reagents. Furthermore, one-pot synthetic routes starting from isatoic anhydrides or 2-aminobenzonitriles were developed by merging microwave and electrochemical methods, enabling the efficient synthesis of 2-aminoquinazolinones from diverse precursors in 38 examples with yields ranging from 40% to 98%. The process demonstrates high atom economy, good faradaic efficiency, and substantial reductions in solvent use and waste generation compared to conventional protocols. This approach is compatible with a variety of functional groups and is scalable to gram-scale synthesis without loss of efficiency. Moreover, the protocol can be successfully applied to the synthesis of both bioactive compounds and organocatalysts, highlighting its versatility and environmental benefits.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100512"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid metal organic framework-polyethersulfone hollow fiber membrane interface for advanced ultrafiltration of microplastics, dyes, heavy metals, and salts: Toward sustainable development goals for wastewater treatment 混合金属有机框架-聚醚砜中空纤维膜界面用于微塑料、染料、重金属和盐的高级超滤:迈向废水处理的可持续发展目标
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-04-21 DOI: 10.1016/j.crgsc.2026.100518
Muttanna Venkatesh , Arun M. Isloor , Ramin Farnood , Hilda Porawati
The intensifying problem of hazardous pollutants in water bodies, including industrial dyes, microplastics, heavy metals, and inorganic salts, demands the advancement of effective and sustainable treatment solutions. Traditional methods often prove inadequate due to their complexity, high costs, and potential for secondary contamination. This research presents novel fabrication of polyethersulfone (PES) ultrafiltration (UF) hollow fiber membranes (HFMs), integrated with a 3D hierarchical MIL-100(Fe)@MIL-53(Fe) metal organic framework (MOF) composite, designed to address these issues. The tailored MOF composite architecture offers superior porosity and synergistic functional sites, enhancing hydrophilicity, water flux, antifouling resistance, and selective removal efficacy. Characterization techniques, including powder XRD, FTIR, FESEM, AFM, BET, membrane, material Zeta Potential, Particle size analyzer, TGA, and water contact angle, demonstrate the successful synthesis and integration of MOFs, as well as the fabrication of composite incorporated HFMs. This work demonstrates an effective pure water flux of 148 Lm−2h−1 and very good removal efficacy through the cross-flow ultrafiltration process. While rejection efficiency of MM-0 and MM-2 displayed 84.7% and 95.8% for P(St-co-MMA), 92% and 94.9% for PET, 57.9% and 88% for Hg2+, 65.4% and 99% for Pb2+, 67.66% and 98% for CV, 77% and 95% for RO16, 36.32% and 50.37% for Na+, and 42.56 % and 71.28% for Mg2+, respectively. Antifouling studies established a notable flux recovery ratio and operating robustness. This study authenticates the advanced novel work that is promising for the ultrafiltration water treatment process.
随着工业染料、微塑料、重金属和无机盐等有害污染物在水体中的污染问题日益严重,需要开发有效和可持续的处理方案。由于其复杂性、高成本和潜在的二次污染,传统方法往往被证明是不够的。本研究提出了一种新型的聚醚砜(PES)超滤(UF)中空纤维膜(HFMs),并集成了3D分层MIL-100(Fe)@MIL-53(Fe)金属有机框架(MOF)复合材料,旨在解决这些问题。量身定制的MOF复合材料结构提供了优越的孔隙率和协同功能位点,增强了亲水性、水通量、防污性和选择性去除效果。表征技术,包括粉末XRD, FTIR, FESEM, AFM, BET,膜,材料Zeta电位,粒度分析仪,TGA和水接触角,证明了mof的成功合成和集成,以及复合材料的制备。本研究表明,通过交叉流超滤工艺,有效的纯水通量为148 Lm−2h−1,具有很好的去除效果。MM-0和MM-2对P(St-co-MMA)的抑制率分别为84.7%和95.8%,PET的抑制率分别为92%和94.9%,Hg2+的抑制率分别为57.9%和88%,Pb2+的抑制率分别为65.4%和99%,CV的抑制率分别为67.66%和98%,RO16的抑制率分别为77%和95%,Na+的抑制率分别为36.32%和50.37%,Mg2+的抑制率分别为42.56%和71.28%。防污研究证实了显著的通量回收率和运行稳健性。本研究验证了超滤水处理工艺中有前景的先进新工作。
{"title":"Hybrid metal organic framework-polyethersulfone hollow fiber membrane interface for advanced ultrafiltration of microplastics, dyes, heavy metals, and salts: Toward sustainable development goals for wastewater treatment","authors":"Muttanna Venkatesh ,&nbsp;Arun M. Isloor ,&nbsp;Ramin Farnood ,&nbsp;Hilda Porawati","doi":"10.1016/j.crgsc.2026.100518","DOIUrl":"10.1016/j.crgsc.2026.100518","url":null,"abstract":"<div><div>The intensifying problem of hazardous pollutants in water bodies, including industrial dyes, microplastics, heavy metals, and inorganic salts, demands the advancement of effective and sustainable treatment solutions. Traditional methods often prove inadequate due to their complexity, high costs, and potential for secondary contamination. This research presents novel fabrication of polyethersulfone (PES) ultrafiltration (UF) hollow fiber membranes (HFMs), integrated with a 3D hierarchical MIL-100(Fe)@MIL-53(Fe) metal organic framework (MOF) composite, designed to address these issues. The tailored MOF composite architecture offers superior porosity and synergistic functional sites, enhancing hydrophilicity, water flux, antifouling resistance, and selective removal efficacy. Characterization techniques, including powder XRD, FTIR, FESEM, AFM, BET, membrane, material Zeta Potential, Particle size analyzer, TGA, and water contact angle, demonstrate the successful synthesis and integration of MOFs, as well as the fabrication of composite incorporated HFMs. This work demonstrates an effective pure water flux of 148 Lm<sup>−2</sup>h<sup>−1</sup> and very good removal efficacy through the cross-flow ultrafiltration process. While rejection efficiency of MM-0 and MM-2 displayed 84.7% and 95.8% for P(St-co-MMA), 92% and 94.9% for PET, 57.9% and 88% for Hg<sup>2+</sup>, 65.4% and 99% for Pb<sup>2+</sup>, 67.66% and 98% for CV, 77% and 95% for RO16, 36.32% and 50.37% for Na<sup>+</sup>, and 42.56 % and 71.28% for Mg<sup>2+,</sup> respectively. Antifouling studies established a notable flux recovery ratio and operating robustness. This study authenticates the advanced novel work that is promising for the ultrafiltration water treatment process.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100518"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147748911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Calcium carbonate nanoparticle-incorporated Polyethersulfone hollow fiber membranes for the removal of Arsenic (V) from wastewater through ultrafiltration 纳米碳酸钙-聚醚砜中空纤维膜超滤去除废水中的砷(V)
Q2 Materials Science Pub Date : 2026-01-01 Epub Date: 2026-10-09 DOI: 10.1016/j.crgsc.2026.100537
D. Mruthyunjaya Swamy, Arun M. Isloor, Muttanna Venkatesh, Hilda Porawati, Geetha Mable Pinto, Vijayendra Shetti
Arsenic contamination of drinking water is a widespread global concern. Long-term exposure can cause serious health problems, highlighting the urgent need for effective arsenic removal methods from wastewater. Traditional approaches often involve high chemical consumption, produce sludge, and lack flexibility, limiting their efficiency. Membrane technology offers a promising, advanced solution with advantages in scalability, durability, and effectiveness for various water treatment issues. This study presented the fabrication of hollow fiber membranes (HFMs) via phase inversion using the dry-jet wet spinning technique and uniquely shows that incorporating calcium carbonate nanoparticles (CNPs) into Polyethersulfone HFMs allows for simultaneous enhancements in hydrophilicity, pure water permeability, and arsenic (V) rejection efficiency, addressing the gaps in existing research that typically examine only isolated performance improvements. The synthesis of CNPs and the fabrication of both modified and unmodified HFMs were verified through physicochemical analyses such as Fourier Transform Infrared Spectroscopy, Powder X-Ray Diffraction, Zeta Potential and Particle Size measurements, Brunauer-Emmett-Teller analysis, Thermogravimetric analysis, Scanning Electron Microscope-Energy Dispersive Spectroscopy, Atomic Force Microscopy, Membrane Zeta Potential, and Water Contact Angle (WCA) testing. Performance studies, such as pure water permeability (PWP), water uptake (WU), and rejection efficiency (RE) of As (V), were performed at 1 bar transmembrane pressure. The results showed WU of 84.48% and 72.6%, WCA of 77.4° and 84.2°, PWP of 97 and 66.15 L m−2 h−1 bar−1, and arsenic(V) rejection efficiencies of 63.69% and 41.79% for optimized and pristine membranes, respectively. While UF membranes typically have lower arsenic ion removal efficiency than nanofiltration or reverse osmosis, embedding NPs in the PES polymer matrix modifies surface charge, promotes adsorption, and facilitates complexation. This modification significantly improves the rejection of arsenic(V) ions under cross-flow UF conditions. Overall, the optimized HFMs provides an effective approach for water purification by combining size exclusion, electrostatic interactions, adsorption, and surface complexation mechanisms.
饮用水砷污染是全球普遍关注的问题。长期接触砷会造成严重的健康问题,因此迫切需要从废水中找到有效的除砷方法。传统的方法往往涉及高化学品消耗,产生污泥,缺乏灵活性,限制了其效率。膜技术为各种水处理问题提供了一种有前途的先进解决方案,具有可扩展性,耐用性和有效性的优势。本研究介绍了利用干喷湿纺丝技术通过相转化制备中空纤维膜(HFMs),并独特地表明,将碳酸钙纳米颗粒(CNPs)加入聚醚砜中空纤维膜中,可以同时增强亲水性、纯水渗透性和砷(V)的抑制效率,解决了现有研究中通常只检测孤立性能改进的空白。通过傅里叶变换红外光谱、粉末x射线衍射、Zeta电位和粒度测量、brunauer - emmet - teller分析、热重分析、扫描电子显微镜-能量色散光谱、原子力显微镜、膜Zeta电位和水接触角(WCA)测试等理化分析,验证了CNPs的合成以及改性和未改性HFMs的制备。性能研究,如纯水渗透性(PWP)、吸水性(WU)和as (V)的截除效率(RE),在1 bar跨膜压力下进行。结果表明:优化膜和原始膜的WU分别为84.48%和72.6%,WCA分别为77.4°和84.2°,PWP分别为97和66.15 L m−2 h−1 bar−1,砷(V)的去除效率分别为63.69%和41.79%。虽然超滤膜的砷离子去除效率通常低于纳滤或反渗透,但在PES聚合物基质中嵌入NPs可以改变表面电荷,促进吸附,并促进络合。该改性显著提高了交叉流超滤条件下对砷(V)离子的去除率。总的来说,优化后的HFMs结合了尺寸排斥、静电相互作用、吸附和表面络合机制,为水净化提供了有效的方法。
{"title":"Calcium carbonate nanoparticle-incorporated Polyethersulfone hollow fiber membranes for the removal of Arsenic (V) from wastewater through ultrafiltration","authors":"D. Mruthyunjaya Swamy,&nbsp;Arun M. Isloor,&nbsp;Muttanna Venkatesh,&nbsp;Hilda Porawati,&nbsp;Geetha Mable Pinto,&nbsp;Vijayendra Shetti","doi":"10.1016/j.crgsc.2026.100537","DOIUrl":"10.1016/j.crgsc.2026.100537","url":null,"abstract":"<div><div>Arsenic contamination of drinking water is a widespread global concern. Long-term exposure can cause serious health problems, highlighting the urgent need for effective arsenic removal methods from wastewater. Traditional approaches often involve high chemical consumption, produce sludge, and lack flexibility, limiting their efficiency. Membrane technology offers a promising, advanced solution with advantages in scalability, durability, and effectiveness for various water treatment issues. This study presented the fabrication of hollow fiber membranes (HFMs) via phase inversion using the dry-jet wet spinning technique and uniquely shows that incorporating calcium carbonate nanoparticles (CNPs) into Polyethersulfone HFMs allows for simultaneous enhancements in hydrophilicity, pure water permeability, and arsenic (V) rejection efficiency, addressing the gaps in existing research that typically examine only isolated performance improvements. The synthesis of CNPs and the fabrication of both modified and unmodified HFMs were verified through physicochemical analyses such as Fourier Transform Infrared Spectroscopy, Powder X-Ray Diffraction, Zeta Potential and Particle Size measurements, Brunauer-Emmett-Teller analysis, Thermogravimetric analysis, Scanning Electron Microscope-Energy Dispersive Spectroscopy, Atomic Force Microscopy, Membrane Zeta Potential, and Water Contact Angle (WCA) testing. Performance studies, such as pure water permeability (PWP), water uptake (WU), and rejection efficiency (RE) of As (V), were performed at 1 bar transmembrane pressure. The results showed WU of 84.48% and 72.6%, WCA of 77.4° and 84.2°, PWP of 97 and 66.15 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup>, and arsenic(V) rejection efficiencies of 63.69% and 41.79% for optimized and pristine membranes, respectively. While UF membranes typically have lower arsenic ion removal efficiency than nanofiltration or reverse osmosis, embedding NPs in the PES polymer matrix modifies surface charge, promotes adsorption, and facilitates complexation. This modification significantly improves the rejection of arsenic(V) ions under cross-flow UF conditions. Overall, the optimized HFMs provides an effective approach for water purification by combining size exclusion, electrostatic interactions, adsorption, and surface complexation mechanisms.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"13 ","pages":"Article 100537"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149251686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Current Research in Green and Sustainable Chemistry
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
﹀
mjeditor
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1