Current Research in Green and Sustainable Chemistry最新文献

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Sustainable nanohybrid modified polyphenylsulfone ultrafiltration membranes for efficient protein separation 可持续纳米杂化改性聚苯砜超滤膜的高效蛋白质分离
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2025-12-05 DOI: 10.1016/j.crgsc.2025.100500
H.R. Panchami , Arun M. Isloor , B.M. Dodamani , A.M. Vijesh
{"title":"Sustainable nanohybrid modified polyphenylsulfone ultrafiltration membranes for efficient protein separation","authors":"H.R. Panchami ,&nbsp;Arun M. Isloor ,&nbsp;B.M. Dodamani ,&nbsp;A.M. Vijesh","doi":"10.1016/j.crgsc.2025.100500","DOIUrl":"10.1016/j.crgsc.2025.100500","url":null,"abstract":"<div><div>Present work describes the development of performance enhancement of polyphenylsulfone (PPSU) membranes by incorporating polyaniline nanofiber-bentonite (PANI-bentonite) nanohybrid in the membrane matrix via immersion precipitation method, as an effective strategy for removing proteins from contaminated water. The hydrophilic PANI-bentonite nanohybrid was successfully synthesized and characterized. Several instrumental techniques like SEM, AFM, TEM, EDX and BET analysis were used to study the morphological changes during the incorporation of nanohybrid in the PPSU membranes. Experimental results revealed that hydrophilic PANI-bentonite content in the membrane is responsible for the formation of an effective cavities in the composite membranes and enhanced properties like porosity, hydrophilicity and water intake abilities of the modified PPSU composite membranes. Moreover, inclusion of PANI-bentonite nanohybrid increased the permeability and showed the highest results for PBM-2 membrane, which showed a permeability of 181 Lm<sup>−2</sup>h<sup>−1</sup> bar<sup>−1</sup> compared to the pristine membrane with a permeability 106 Lm<sup>−2</sup>h<sup>−1</sup> bar<sup>−1</sup>. The outcomes of the various studies showed that the nanocomposite membrane's fouling resistance increased from 51.4 % for the pristine membrane to 82.8 % for the PBM-2 membrane. Protein filtration efficiency analysis of the developed membranes revealed that PBM-2 membrane with 1 w% PANI-bentonite has high rejection for BSA, egg albumin and pepsin, exhibited 96.7 %, 95.2 % and 68.8 % efficiencies respectively.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100500"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145750215","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
Assessment of antioxidant and antibacterial potentials of Artemisia sieberi growing wild in Iran 伊朗野生细叶蒿抗氧化和抗菌活性评价
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2026-07-23 DOI: 10.1016/j.crgsc.2026.100529
Maryam Shokorollahi, Akbar Esmaeili, Abdolhosein Rustaiyan, João Henrique Zimnoch dos Santos
{"title":"Assessment of antioxidant and antibacterial potentials of Artemisia sieberi growing wild in Iran","authors":"Maryam Shokorollahi,&nbsp;Akbar Esmaeili,&nbsp;Abdolhosein Rustaiyan,&nbsp;João Henrique Zimnoch dos Santos","doi":"10.1016/j.crgsc.2026.100529","DOIUrl":"10.1016/j.crgsc.2026.100529","url":null,"abstract":"<div><div>This study investigates the antioxidant and antibacterial potential of essential oils from the seeds and stems of <em>Artemisia sieberi</em>, a plant native to Iran. The oils were extracted by hydrodistillation and analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The predominant components were santolinyl acetate (34.8% in seeds, 29.5% in stems), camphor (20.7% in seeds, 17.1% in stems), and 1,8-cineole (10.7% in seeds, 6.0% in stems).</div><div>The essential oils exhibited notable antibacterial activity, particularly against Gram-positive bacteria such as <em>Staphylococcus aureus</em>, with inhibition zones up to 65 mm for the seed oil and 50 mm for the stem oil. Antioxidant capacity was assessed using the DPPH assay, yielding an impressive IC<sub>50</sub> of 0.2089 μg/mL for the stem oil, indicating strong radical-scavenging ability. Additionally, the β-carotene-linoleic acid assay showed a significant percentage of inhibition, confirming the oils' antioxidant efficacy.</div><div>These findings highlight the potential of <em>A. sieberi</em> essential oils as effective natural antibacterial and antioxidant agents, supporting their use in the health and wellness sectors.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"13 ","pages":"Article 100529"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148635953","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
Clove waste-derived green corrosion inhibitor for API 5L Grade B steel in acidic HCl environment 丁香废料衍生的API 5L级B钢在酸性盐酸环境中的绿色缓蚀剂
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2026-08-11 DOI: 10.1016/j.crgsc.2026.100530
Atria Pradityana, Farah Khosfirah, Wan Mohd Norsani Wan Nik, Elyor Berdimurodov, Izionworu Vincent Onuegbu, Walid Daoudi
{"title":"Clove waste-derived green corrosion inhibitor for API 5L Grade B steel in acidic HCl environment","authors":"Atria Pradityana,&nbsp;Farah Khosfirah,&nbsp;Wan Mohd Norsani Wan Nik,&nbsp;Elyor Berdimurodov,&nbsp;Izionworu Vincent Onuegbu,&nbsp;Walid Daoudi","doi":"10.1016/j.crgsc.2026.100530","DOIUrl":"10.1016/j.crgsc.2026.100530","url":null,"abstract":"<div><div>This study investigates the corrosion inhibition performance and dynamic adsorption mechanism of clove waste extract (<em>Syzygium aromaticum</em>) as an eco-friendly organic inhibitor for API 5L Grade B steel in a 0.5 M HCl environment. The primary focus of this work lies in the integrated evaluation of low inhibitor concentrations (15–25 ppm) and prolonged immersion times (12–20 h) to elucidate the correlation between evaluation methods, protection efficiency, and film stability. Inhibition performance was systematically assessed using Potentiodynamic Polarization (PDP), Electrochemical Impedance Spectroscopy (EIS), and Weight Loss methods, while the interfacial characteristics were analyzed through Langmuir adsorption isotherms, Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The experimental results demonstrate that the clove extract effectively reduces the corrosion rate, achieving optimal initial inhibition efficiencies of 98.29% (PDP), 89.92% (EIS), and 98.29% (Weight Loss) at 25 ppm after 12 h of exposure. Electrochemical analyses confirm that the extract functions as a predominantly mixed-type inhibitor that simultaneously suppresses both anodic metal dissolution and cathodic hydrogen evolution. Thermodynamic evaluation reveals standard free energy of adsorption (-ΔG°ads) values ranging between 7.56 and 17.66 kJ/mol, explicitly confirming a spontaneous, physisorption-dominated mechanism driven by weak electrostatic interactions. This physical nature accounts for the high initial surface coverage (θ ≈ 0.98) and the subsequent susceptibility of the film to dynamic adsorption–desorption fluctuations and molecular rearrangements observed at extended immersion periods (16–20 h). SEM and FTIR analyses corroborate these findings, confirming that the mitigation is achieved through a concentration-dependent organic adsorbate layer. The results demonstrate regarding the capabilities and temporal limitations of clove extract, highlighting its functional profile as a bio-based corrosion inhibitor for carbon steel pipeline systems under specific acidic conditions.</div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"13 ","pages":"Article 100530"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148730808","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
EU taxonomy and chemical manufacturing: How implementation gaps undermine investment in circular, safer and more sustainable substances and chemical processes 欧盟分类和化学制造:实施差距如何破坏对循环、更安全和更可持续的物质和化学过程的投资
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2026-04-22 DOI: 10.1016/j.crgsc.2026.100517
Aaron Rittmeier, Martin Führ
{"title":"EU taxonomy and chemical manufacturing: How implementation gaps undermine investment in circular, safer and more sustainable substances and chemical processes","authors":"Aaron Rittmeier,&nbsp;Martin Führ","doi":"10.1016/j.crgsc.2026.100517","DOIUrl":"10.1016/j.crgsc.2026.100517","url":null,"abstract":"<div><div>The <em>European Commission</em> faces a critical challenge in aligning the <em>EU Taxonomy for sustainable activities</em> with the pillars of the <em>European Green Deal</em>, particularly the <em>“zero-pollution ambition for a toxic-free environment”</em> and the <em>“mobilising industry for a clean and circular economy”</em>. Functioning as the unified classification system for environmentally sustainable economic activities, the <em>Taxonomy</em> is designed to bridge real and financial economies, directing capital toward the economic transition. Despite the <em>Chemical Strategy for Sustainability</em> underscoring the chemical industry's essential role in the transition, only a fraction of the activities related to manufacturing of chemicals is covered by the Taxonomy. Particularly, the adopted <em>Environmental Delegated Regulation</em>, comprising the environmental goals <em>Pollution Prevention and Control</em> and <em>Transition to a Circular Economy</em>, lacks activities and specific, measurable criteria for design and production of safer and more sustainable substances and chemical processes. Consequently, progressive chemical manufacturers cannot demonstrate their substantial contribution to these environmental goals through Taxonomy reporting, limiting their access to green capital. Coupled with usability challenges and a low percentage of <em>Taxonomy-eligible</em> and -<em>aligned</em> activities compared to other industries, the majority of chemical manufacturers perceives the <em>Taxonomy</em> as a misaligned instrument for funding <em>Green Chemistry innovation</em>. This transdisciplinary research highlights the systemic bottlenecks. It argues: Without targeted revisions of the delegated regulations and enhanced integration of suitable pollution prevention and circularity metrics, the <em>Taxonomy</em> will remain ineffective in steering financial flows toward a “safer, zero-pollution, and circular chemical industry” - as envisioned by the <em>European Commission's Transition Pathway for the Chemical Industry.</em></div></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"12 ","pages":"Article 100517"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147802792","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
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
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2026-06-16 DOI: 10.1016/j.crgsc.2026.100528
Chuanjiang Pan, Chaiyan Chaiya, Sasiradee Jantasee
{"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
Current Research in Green and Sustainable Chemistry 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
{"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
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2026-05-17 DOI: 10.1016/j.crgsc.2026.100522
Nara Yaowiwat , Karnkamol Trisopon , Worrapan Poomanee
{"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
Current Research in Green and Sustainable Chemistry 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
{"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
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2026-01-16 DOI: 10.1016/j.crgsc.2026.100508
Farzaneh Mohamadpour
{"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
Current Research in Green and Sustainable Chemistry Pub Date : 2026-01-01 Epub Date: 2026-02-12 DOI: 10.1016/j.crgsc.2026.100511
Masoud Khojasteh, Amirhossein Dehghan, Mohammad Delnavaz
{"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
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