Current Research in Green and Sustainable Chemistry最新文献

{"title":"Dual-phase bio-carbon coatings for mild steel protection: A green approach using sugarcane bagasse and eggshell waste","authors":"S.G. Ganapathy Kumaresh,&nbsp;M. Ananthkumar","doi":"10.1016/j.crgsc.2025.100498","DOIUrl":"10.1016/j.crgsc.2025.100498","url":null,"abstract":"<div><div>Corrosion significantly compromises the durability of reinforced concrete structures, leading to progressive strength loss and eventual structural failure. This study aims to develop an eco-friendly, organic carbon-based coating for mild steel using carbon derived from sugarcane bagasse and eggshell, with the objective of enhancing corrosion resistance. The findings suggest that a synergistic combination of amorphous and crystalline carbon phases improves the protective properties of the coating. Various coating formulations were prepared, including 100 % sugarcane bagasse (SG100 %), 100 % eggshell (ES100 %), and composite blends of 25 % eggshell + 75 % sugarcane bagasse (ES25 %+SG75 %), 50 % eggshell + 50 % sugarcane bagasse (ES50 %+SG50 %), and 75 % eggshell + 25 % sugarcane bagasse (ES75 %+SG25 %). Coated mild steel strips were immersed in 3.5 % NaCl contaminated simulated concrete pore solution (SCPS) to mimic a saline environment, and in 0.5 M HCl to represent an acidic medium. Corrosion behavior was evaluated through potentiodynamic polarization studies, supported by physicochemical characterization, mechanical testing, and COMSOL simulation. Among the tested formulations, the ES50 %+SG50 % composite exhibited superior corrosion resistance, with corrosion rates of 0.04 mm/year in SCPS and 1.06 mm/year in HCl. Furthermore, no visible morphological or structural degradation was observed after 2000 test cycles, confirming the coating's stability and effectiveness as a corrosion-resistant barrier for reinforced concrete applications.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100498"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145575948","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}

{"title":"Optimizing reaction configurations of sequential batch reactor (SBR) for nitrogen removal from wastewater","authors":"Uma Sakthivel PhD (Guest Teacher) ,&nbsp;Sukumar P","doi":"10.1016/j.crgsc.2025.100493","DOIUrl":"10.1016/j.crgsc.2025.100493","url":null,"abstract":"<div><div>Biological nutrient removal in SBRs requires the optimized sequencing of aerobic and anoxic phases to balance nitrification, denitrification and energy use. This study uses GPS-X v8.1 to simulate a 212 m³ SBR treating synthetic domestic wastewater (COD 2,500–3,500 mg L⁻¹; TN ≈ 60 mg N L⁻¹) under a 24-h cycle (1 h fill, 20 h react, 2 h settle/decant, 1 h idle) with DO setpoint of 2.0 mgL⁻¹. Eleven operational strategies—including pre-anoxic, post-anoxic, intermittent aeration and their combinations—were evaluated. The model was calibrated and validated against independent plant data (R² ≥ 0.85; NSE ≥0.70). A combined pre-anoxic + post-anoxic + intermittent aeration configuration delivered the best trade-off, achieving 87.1 % TN removal and 88.6 % TP removal while maintaining BOD and COD removal &gt;89 % and a moderate energy penalty. Sensitivity and multi-objective optimization (TN removal vs energy) identified SRT, internal recirculation ratio and aerobic fraction as dominant controls and produced Pareto-optimal aeration schedules for practical implementation. These results provide actionable guidance for energy-efficient SBR operation to meet stringent nutrient targets.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100493"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462786","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}

{"title":"Exploration of cosmetic bioactive compounds from cocoa bean shell using polyol-based microwave-assisted extraction: Cytotoxicity, anti-tyrosinase, and anti-melanogenesis properties","authors":"Sasakorn Pattanakitjaroenchai ,&nbsp;Puthita Pitsawong ,&nbsp;Nuntawat Khat-Udomkiri","doi":"10.1016/j.crgsc.2025.100454","DOIUrl":"10.1016/j.crgsc.2025.100454","url":null,"abstract":"<div><div>Cocoa bean shells, a major byproduct of the cocoa industry, hold significant potential for value-added applications, particularly in cosmetics. The aim of this study was to develop a sustainable, eco-friendly extraction process for bioactive compounds with skin-whitening properties using microwave-assisted extraction (MAE) and polyol-based solvents, a novel approach in cocoa bean shell valorization. Polyols, such as propylene glycol (PG), were compared to ethanol (EtOH) for their efficiency in extracting bioactive compounds. The influence of polyol type, polyol concentration, solid-to-liquid ratio, temperature, and extraction time on total phenolic content (TPC), total flavonoid content (TFC), and tyrosinase inhibitory activity was systematically evaluated. This study demonstrated that PG, at optimal conditions (60 % w/v, 1:50 solid-to-liquid ratio, 100 °C, 30-min extraction), significantly enhanced TPC (59.57 ± 1.33 mg GAE/g sample), TFC (242.24 ± 2.95 mg QE/g sample), and tyrosinase inhibition (4.75 ± 0.35 mg KAE/g sample) compared to EtOH. LC-QQQ analysis identified quercetin, catechin, and trigonelline as key contributors to tyrosinase inhibition and melanin content reduction, with PG extracts demonstrating superior functional activity despite similar quercetin levels in both solvents. Comparative cytotoxicity, anti-melanogenic assays, and cellular tyrosinase inhibition further confirmed the enhanced safety and efficacy of PG extracts over conventional ethanol extracts, positioning them as a novel green solvent system for developing effective skin-whitening active ingredients in cosmetic formulations.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100454"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792574","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}

{"title":"Optimization and comparative performance of Jatropha Curcas extracts for turbidity removal in water treatment","authors":"Amal Al-Hanaktah,&nbsp;Soraya Mercedes Pérez,&nbsp;Ashraf Alsafasfeh","doi":"10.1016/j.crgsc.2025.100497","DOIUrl":"10.1016/j.crgsc.2025.100497","url":null,"abstract":"<div><div>This study assesses the coagulation potential of <em>Jatropha Curcas</em> leaf, shell, and kernel extracts for removing turbidity from synthetic water. Process optimization was conducted using Response Surface Methodology with a Central Composite Design, focusing on coagulant dosage, pH, and temperature as independent variables, and turbidity removal as the response variable. Quadratic models showed strong fits (R² = 0.9191 for leaf, 0.8720 for shell, and 0.8962 for kernel). Dosage was the most influential factor, with optimized coagulation efficiencies of 95.02 % for leaf, 92.66 % for shell, and 91.44 % for kernel extracts at specific conditions: 1 % v/v (leaf) at pH 8.3 and 45 °C; 0.5 % v/v (shell) at pH 3 and 15 °C; and 4 % v/v (kernel) at pH 8.3 and 45 °C. However, validation and comparison with alum were performed under neutral pH and room temperature to reflect practical application and allow a fair comparison with alum performance. In this setting, alum (4 % dose) achieved 98.76 % removal, while the leaf extract reached 88.83 %, followed by the shell at 78.05 % and the kernel at 77.05 %, all using optimized doses. Cost analysis revealed that the shell extract was the most economical at 0.05 USD/m³, while the leaf extract (2.0 USD/m³) had a favourable efficiency-to-cost ratio. The kernel extract was least cost-effective at 24.0 USD/m³. Compared to alum (20 USD/m³), both <em>Jatropha</em> leaf and shell extracts show promise as sustainable, low-cost coagulants.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100497"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145525278","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}

{"title":"Selective flotation of silicates from phosphates using Tetrabutyl Ammonium Chloride as a green collector","authors":"Ashraf Alsafasfeh","doi":"10.1016/j.crgsc.2025.100461","DOIUrl":"10.1016/j.crgsc.2025.100461","url":null,"abstract":"<div><div>This study introduces Tetrabutyl Ammonium Chloride (TBAC) as a novel selective collector for silicates in the reverse flotation of apatite-quartz model sample. Zeta potential measurements, contact angle analysis, FTIR, and X-ray fluorescence spectroscopy (XPS) were employed to investigate reagent adsorption at mineral-water interfaces. FTIR analysis revealed the appearance of new peaks corresponding to C–H and C–N stretching in TBAC-treated quartz, but not in apatite, indicating TBAC's preferential adsorption on quartz surfaces. XPS analysis further supported FTIR results; a distinct N 1s peak at 401.5 eV was observed on TBAC-treated quartz, while no such peak appeared on apatite, confirming the absence of significant interaction. Zeta potential measurements showed a larger shift in surface charge for quartz than for apatite after TBAC treatment, particularly at higher pH levels, with a notable shift of +16.28 mV at pH 11 for quartz, compared to only +0.4 mV for apatite. Contact angle measurements also demonstrated that TBAC significantly increased quartz hydrophobicity—reaching values above 115°—while apatite showed minimal change. Flotation tests were conducted to evaluate the performance of TBAC as collector for apatite and quartz. In single mineral flotation, the highest quartz recovery (97 %) was achieved at pH 11 with a TBAC dosage of 150 g/ton while the apatite recovery was reduced to 31.6 %. The binary-mineral system showed a higher recovery of apatite with a commercial quartz collector at 52.4 %, compared to just 25.3 % when TBAC was used. Comparative tests with a conventional DA collector revealed that apatite recovery was significantly higher with DA (52.4 %) than with TBAC (25.3 %), emphasizing TBAC's limited interaction with phosphate minerals and its potential utility for silicate removal in reverse flotation processes.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100461"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068559","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}

{"title":"Agonistic and antagonistic effects of both aqueous and alcoholic extracts of plants containing copper and silver nanoparticles on Escherichia coli and Proteus mirabilis","authors":"Shohreh Torabi,&nbsp;Fatemeh Keshavarzi","doi":"10.1016/j.crgsc.2025.100475","DOIUrl":"10.1016/j.crgsc.2025.100475","url":null,"abstract":"<div><div>This study aimed to investigate and compare the inhibitory effects of copper and silver nanoparticles (NPs), as well as aqueous and alcoholic extracts of yarrow and chamomile against <em>E. coli</em> and <em>P. mirabilis</em> bacteria. The extracts were prepared from fresh leaves of chamomile and yarrow plants using the maceration method. Copper NPs were purchased and silver NPs were prepared through the chemical recovery method. The bactericidal effects were measured by changes in the zone of inhibition (ZoI). The absence of a ZoI was interpreted as resistant, &lt;5 mm as semi-sensitive, and &gt;5 mm as sensitive. The results indicated that the NPs had an approximate size of 7 nm. The diameter of the ZoI in aqueous extracts of chamomile and yarrow was greater for <em>E. coli</em> compared to <em>P. mirabilis</em>, while in alcoholic extracts this relationship was reversed. The concentration of 0.4 μg/μL of copper and silver NPs for both bacteria was the most effective concentration of bactericidal NPs. The combined effect of copper NPs and extracts on <em>E. coli</em> and <em>P. mirabilis</em> indicated that the largest ZoI was associated with the alcoholic extract of chamomile (11 mm) and the aqueous extract of yarrow (13 mm), respectively, at a concentration of 0.4 μg/μL of copper NPs. Antagonistic effects of copper NPs on <em>E. coli</em> and <em>P. mirabilis</em> were observed, with an increase in the concentration of copper NPs leading to a larger non-growth halo diameter. The comparison of the bactericidal effects of the extract-nanoparticle combination and the ZoI results of the antibiogram test for 4 antibiotics revealed that the diameter of the ZoI formed by ciprofloxacin was 24 mm for E. coli and 35 mm for P. mirabilis. The difference ZoI of ciprofloxacin on E.coli compared to other antibiotics, as well as the ZoI of chamomile alcoholic extract and yarrow aqueous extract on E. coli and P. mirabilis, was found to be significant (p &lt; 0.05). Furthermore, the minimum inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) were observed at a concentration of 500 and 250 μL of the combination of silver NPs + aqueous yarrow extract and the combination of copper NPs + aqueous yarrow extract, respectively. Future research should continue to explore these parameters to develop more effective and sustainable approaches to nanoparticle synthesis.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100475"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723927","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}

{"title":"Phytochemistry and antimicrobial potential of off-grade white pepper (Piper nigrum L.) essential oils extracted using microwave-assisted hydro-distillation (MAHD)","authors":"Sarifah Nurjanah ,&nbsp;Sekar Widyaningrum ,&nbsp;Bambang Nurhadi ,&nbsp;S. Rosalinda ,&nbsp;Rienoviar ,&nbsp;Nandang Permadi ,&nbsp;Euis Julaeha","doi":"10.1016/j.crgsc.2025.100450","DOIUrl":"10.1016/j.crgsc.2025.100450","url":null,"abstract":"<div><div>White pepper generally used as spice, has the main component of piperine which gives it a spicy taste and essential oils that determine its aroma. In general trade, only good pepper is traded, while off-grade that does not meet quality requirements will be wasted. This study aims to investigate the effect of extraction methods of essential oils from off-grade white pepper and the potential of its antimicrobial activity against pathogenic bacteria. The results showed that off-grade white pepper essential oils (WPEO) could be isolated by using microwave-assisted hydro-distillation (MAHD) and hydro-distillation (HD). Essential oils produced had physicochemical characteristics in accordance with the ISO 3061:2008 standard. Specifically, MAHD off-grade, MAHD grade-A, and HD WPEO had 13, 11, and 15 components, respectively. The chemical composition showed that all the extracted EO contained the main components of caryophyllene, (+)-3-carene, <span>d</span>-limonene, and β-pinene. The methods showed the extraction ability of monoterpene hydrocarbons by MAHD and sesquiterpene hydrocarbons by HD. In comparison, microwave-extracted essential oils had a higher limonene, while off-grade WPEO contained (+)-3-carene. The FTIR results confirmed the content of the components in the three WPEO that were investigated. All essential oils had antibacterial activity against E. coli and <em>S. typhimurium</em> with zone inhibition values of MAHD off-grade WPEO, MAHD grade-A WPEO, and HD off-grade WPEO against E. coli at 15.44 ± 1.68 mm, 6.72 ± 0.59 mm, and 10.17 ± 0.29 mm, as well as against <em>S. typhimurium</em> at 8.72 ± 1.25 mm, 8.06 ± 0.86 mm, and 8.83 ± 0.87 mm, respectively.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"10 ","pages":"Article 100450"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548531","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}

{"title":"Green recovery of amorphous silica from silicone waste: Alkali activation and thermal treatment","authors":"Wichain Chailad ,&nbsp;Suchalinee Mathurosemontri ,&nbsp;Waroonsiri Jakrabutr ,&nbsp;Kullawadee Sungsanit ,&nbsp;Chaiwute Vudjung ,&nbsp;Pruttipong Pantamanatsopa ,&nbsp;Saowaluk Boonyod ,&nbsp;Nichanan Phansroy","doi":"10.1016/j.crgsc.2025.100490","DOIUrl":"10.1016/j.crgsc.2025.100490","url":null,"abstract":"<div><div>This study presents a green and sustainable method for recovering high-purity silica from solid silicone by-products derived from industrial silicone oil manufacturing through alkali-assisted sol–gel synthesis, with and without thermal treatment. Sodium hydroxide and sodium carbonate were used to evaluate the effects of alkali type, concentration, and calcination at 800 °C on silica yield, structure, and performance. Sodium carbonate-treated and calcined samples achieved the highest silica yield (up to 90.7 %) and purity (&gt;92 wt% SiO₂), while maintaining predominantly amorphous structures with enhanced thermal stability and porosity. In contrast, sodium hydroxide treatments, particularly at higher concentrations, induced partial crystallisation and reduced adsorption capacity. The synthesised silica showed effective methylene blue adsorption, supporting its application in wastewater treatment. This acid-free recovery process provides an environmentally friendly pathway for valorising silicone waste, contributing to circular economy strategies and the development of sustainable functional materials.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100490"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412426","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}

{"title":"Facile synthesis of neodymium-doped biomass-derived graphene nanosheets and electrochemical properties","authors":"Kerista Tarigan ,&nbsp;Rikson Siburian ,&nbsp;Yong Ching Chan ,&nbsp;Yosia Gopas Oetama Manik ,&nbsp;Joys Alisa Angelina Hutapea ,&nbsp;Ronn Goei ,&nbsp;Alfred Iing Yoong Tok ,&nbsp;Isa Anshori ,&nbsp;Yudan Wulanza ,&nbsp;Yatimah Alias","doi":"10.1016/j.crgsc.2025.100491","DOIUrl":"10.1016/j.crgsc.2025.100491","url":null,"abstract":"<div><div>This research aims to develop a sustainable and high-performance electrode materials by synthesizing neodymium-doped graphene nanosheets (Nd/GNS) from renewable candlenut shell biomass using a facile impregnation method. The study investigates the structural, electronic, and electrochemical properties of Nd/GNS with varying Nd concentrations (10–30 % (^w/_v)). Advanced characterization techniques, including X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman Spectroscopy and X-ray photoelectron spectroscopy (XPS), confirmed the successful incorporation of Nd, the formation of Nd-<em>O</em>-C bonds, and enhanced oxygen functionalities without disrupting the original graphene lattice. XPS analysis revealed stable Nd³⁺ oxidation states and strong coordination interactions, enhancing chemical stability. Electrochemical performance, evaluated through cyclic voltammetry (CV) and linear sweep voltammetry (LSV), demonstrated that 20 % Nd-doped GNS achieved optimal results, with a maximum current density of 2.011 A cm⁻² and a charge storage capacity of 0.1634 A V, surpassing commercial graphene by 38 %. This enhancement is attributed to Nd-induced lattice defects, expanded interlayer spacing, and increased pseudo capacitance, offering more active sites for electrochemical reactions. By integrating biomass utilization with rare-earth doping, this study provides a cost-effective and scalable pathway for producing high-performance materials for energy storage and catalytic applications, particularly in supercapacitors and water splitting.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100491"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412425","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}

{"title":"Removal of amoxicillin from hospital waste using Fe2O3–Ag adsorbent and optimization by response surface methodology and machine learning prediction","authors":"Kimia Yavari ,&nbsp;Changiz Karami ,&nbsp;Sara Bijari ,&nbsp;Diba Adami ,&nbsp;Mohammad Hassan Shahavi","doi":"10.1016/j.crgsc.2025.100483","DOIUrl":"10.1016/j.crgsc.2025.100483","url":null,"abstract":"<div><h3>Purpose</h3><div>Antibiotic pollution in hospital effluent is a significant environmental concern that contributes to the evolution of antibiotic-resistant bacteria. This study aims to provide effective removal strategies for antibiotics from wastewater.</div></div><div><h3>Materials and methods</h3><div>In this study, Fe₂O₃–Ag nanocomposites were prepared and characterized to enhance the sorption of Amoxicillin from water. We employed Response Surface Methodology (RSM) and machine learning models (XGBoost and Random Forest) to optimize the adsorption process, maximizing removal efficiency. The optimal conditions for Amoxicillin removal were determined to be a pH of 6.5, a contact time of 26 min, a temperature of 45 °C, and an adsorbent dosage of 0.185 g. Adsorption isotherm and kinetic studies indicated that the process followed the Langmuir model and pseudo-second-order kinetics, respectively.</div></div><div><h3>Results and Discussion</h3><div>Machine learning models demonstrated robust predictive performance, with an R² value of 0.97 for XGBoost. These findings highlight the potential of Fe₂O₃–Ag nanocomposites as effective adsorbents for antibiotic removal, paving the way for sustainable wastewater treatment solutions.</div></div><div><h3>Conclusions</h3><div>In conclusion, Fe₂O₃–Ag nanocomposites can be recognized as effective adsorbents in the removal of antibiotics from wastewater, contributing to the improvement of sustainable wastewater management solutions.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"11 ","pages":"Article 100483"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922018","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}