Pub Date : 2023-01-02DOI: 10.2174/2213346110666230102095423
M. Kamboj, S. Bajpai, M. Yadav, surabhi Singh
Synthesis of heterocyclic scaffolds by microwave irradiation is a green and clean process. The organic transformation induced by microwave irradiation, as an alternative source of energy, has been of great interest due to the high efficiency, yield, and short reaction time with minimum by-product production. Heterocyclic compounds, an important skeleton for pharmaceuticals, are the most privileged and prevalent class of organic chemistry. They have enormous medicinal value and pharmaceutical potential. This review demonstrates the effectiveness of microwave heating for the synthesis of heterocyclic compounds. The eco-friendly microwave-induced synthesis of five-membered heterocyclic systems covering recent literature is highlighted in this article.
{"title":"Microwave Radiations: A Green Approach to the Synthesis of Five Membered Heterocyclic Compounds","authors":"M. Kamboj, S. Bajpai, M. Yadav, surabhi Singh","doi":"10.2174/2213346110666230102095423","DOIUrl":"https://doi.org/10.2174/2213346110666230102095423","url":null,"abstract":"\u0000\u0000Synthesis of heterocyclic scaffolds by microwave irradiation is a green and clean process. The\u0000organic transformation induced by microwave irradiation, as an alternative source of energy, has been of\u0000great interest due to the high efficiency, yield, and short reaction time with minimum by-product production. Heterocyclic compounds, an important skeleton for pharmaceuticals, are the most privileged and\u0000prevalent class of organic chemistry. They have enormous medicinal value and pharmaceutical potential.\u0000This review demonstrates the effectiveness of microwave heating for the synthesis of heterocyclic compounds. The eco-friendly microwave-induced synthesis of five-membered heterocyclic systems covering\u0000recent literature is highlighted in this article.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41447116","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}
Pub Date : 2023-01-02DOI: 10.2174/2213346110666230102120527
D. Dalal, Yogesh B. Wagh, Yogesh A. Tayade, P. Mahulikar
In this review, we report green transformations of biologically active heterocycles catalyzed by Citric acid. Citric acid is found naturally in citrus fruits, especially lemons and limes. Citric acid is soluble in water used as a highly efficient and biodegradable catalyst for multi-component transformations, biomimetic reactions, and C-C bond formation. It has been applicable for the multicomponent synthesis of pyrano[2, 3-e]pyrimidin, pyrano[2, 3-d]pyrazol-amines, amidoalkyl naphthols, tetrahydropyridines, indazolo[2,1-b]phthalazine-triones, indazolo[2,1-b]phthalazine-triones, indazolo[2,1-b]phthalazine-triones, ethyl 3-methyl-4,5-dioxo-1,2-diphenylpyrrolidine-3-carboxylate and 2,4-disubstituted thiazoles from ketones via C–Br, C–S, and C–N Bond Formations. Citric acid is also used in combination with ultrasound for the synthesis of biologically active pyrazolyl-bis coumarinyl methanes and pyrrolidinone. Citric acid is used in the generation of nanocatalysts, mesoporous carbon materials (OMCs) as well as polymerization reactions by the reaction of resorcinol/formaldehyde resin. Citric acid is also used in the generation of fluorescent 1,4-disubstituted-1,2,3-triazoles1,8-dioxo-decahydroacridines by Hantzsch condensation.
{"title":"Citric Acid Promoted Green Synthesis of Bioactive Heterocycles","authors":"D. Dalal, Yogesh B. Wagh, Yogesh A. Tayade, P. Mahulikar","doi":"10.2174/2213346110666230102120527","DOIUrl":"https://doi.org/10.2174/2213346110666230102120527","url":null,"abstract":"\u0000\u0000In this review, we report green transformations of biologically active heterocycles catalyzed by Citric acid. Citric acid is found naturally in citrus fruits, especially lemons and limes. Citric acid is soluble in water used as a highly efficient and biodegradable catalyst for multi-component transformations, biomimetic reactions, and C-C bond formation. It has been applicable for the multicomponent synthesis of pyrano[2, 3-e]pyrimidin, pyrano[2, 3-d]pyrazol-amines, amidoalkyl naphthols, tetrahydropyridines, indazolo[2,1-b]phthalazine-triones, indazolo[2,1-b]phthalazine-triones, indazolo[2,1-b]phthalazine-triones, ethyl 3-methyl-4,5-dioxo-1,2-diphenylpyrrolidine-3-carboxylate and 2,4-disubstituted thiazoles from ketones via C–Br, C–S, and C–N Bond Formations. Citric acid is also used in combination with ultrasound for the synthesis of biologically active pyrazolyl-bis coumarinyl methanes and pyrrolidinone. Citric acid is used in the generation of nanocatalysts, mesoporous carbon materials (OMCs) as well as polymerization reactions by the reaction of resorcinol/formaldehyde resin. Citric acid is also used in the generation of fluorescent 1,4-disubstituted-1,2,3-triazoles1,8-dioxo-decahydroacridines by Hantzsch condensation.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45421183","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}
Pub Date : 2022-12-30DOI: 10.2174/2213346110666221230113833
S. Roopan, Mohamed Sulthan Hasan Fathima Afridha, Kathar Aazath, Sagayaraj Jane Anto Simplica
The wide pharmaceutical activity of the bioactive heterocycles, which include nitrogen, oxygen, and sulphur and comprise five- and six-membered rings, has drawn the attention of medicinal chemists for several years. The therapeutic potential of bioactive heterocycles for a variety of disorders lies in their medicinal effects. The most prominent of them is Alzheimer's disease (AD), a neurodegenerative disorder that impairs memory and causes other psychiatric problems. Globally, there are around 54 million cases, and by 2050, that number is predicted to rise by 131 million. So far, donepezil, galantamine, and rivastigmine have indeed received FDA approval for use in the treatment of AD. In this regard, the pharmacophoric properties of heterocycle molecules are equivalent to those of galantamine mimics. Therefore, it is beneficial to create novel compounds containing these moieties and test their ability to inhibit acetyl and butyl cholinesterase. Diverse heterocyclic scaffolds may now have therapeutic potential for Alzheimer's disease. Recently, greener and more expeditious synthesis of bioactive heterocycles has drawn much attention because of the utilisation of environmentally benign protocols, thereby diminishing the usage of hazardous chemicals. In this review, we discuss the most pertinent findings about the "green" synthesis of heterocycles and their possible anti-activity against Alzheimer's.
{"title":"Bioactive heterocycles: Green synthesis \u0000and its anti-Alzheimer activity","authors":"S. Roopan, Mohamed Sulthan Hasan Fathima Afridha, Kathar Aazath, Sagayaraj Jane Anto Simplica","doi":"10.2174/2213346110666221230113833","DOIUrl":"https://doi.org/10.2174/2213346110666221230113833","url":null,"abstract":"\u0000\u0000The wide pharmaceutical activity of the bioactive heterocycles, which include nitrogen, oxygen, and sulphur and comprise five- and six-membered rings, has drawn the attention of medicinal chemists for several years. The therapeutic potential of bioactive heterocycles for a variety of disorders lies in their medicinal effects. The most prominent of them is Alzheimer's disease (AD), a neurodegenerative disorder that impairs memory and causes other psychiatric problems. Globally, there are around 54 million cases, and by 2050, that number is predicted to rise by 131 million. So far, donepezil, galantamine, and rivastigmine have indeed received FDA approval for use in the treatment of AD. In this regard, the pharmacophoric properties of heterocycle molecules are equivalent to those of galantamine mimics. Therefore, it is beneficial to create novel compounds containing these moieties and test their ability to inhibit acetyl and butyl cholinesterase. Diverse heterocyclic scaffolds may now have therapeutic potential for Alzheimer's disease. Recently, greener and more expeditious synthesis of bioactive heterocycles has drawn much attention because of the utilisation of environmentally benign protocols, thereby diminishing the usage of hazardous chemicals. In this review, we discuss the most pertinent findings about the \"green\" synthesis of heterocycles and their possible anti-activity against Alzheimer's.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43940084","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}
Pub Date : 2022-12-23DOI: 10.2174/2213346110666221223140653
Ram Singh, C. Prakash
The diverse biological applications of fluorinated heterocycles make them crucial chemical compounds. Several synthetic processes have been developed for their synthesis. Microwave-assisted synthesis has emerged as an important technique for generating fluorinated heterocycles in an eco-friendly and energy-efficient manner. It provides several benefits like less reaction time, high reaction yield, homogeneous heat distribution leading to lower side reaction, and better control of reaction temperature. Recently there has been significant progress in microwave use for heterocycle synthesis. This article discusses the applications of microwave irradiation in the synthesis of oxygen- and nitrogen-containing fluorinated heterocycles.
{"title":"Microwave-assisted Synthesis of Fluorinated Heterocycles","authors":"Ram Singh, C. Prakash","doi":"10.2174/2213346110666221223140653","DOIUrl":"https://doi.org/10.2174/2213346110666221223140653","url":null,"abstract":"\u0000\u0000The diverse biological applications of fluorinated heterocycles make them crucial chemical compounds. Several synthetic processes have been developed for their synthesis. Microwave-assisted synthesis has emerged as an important technique for generating fluorinated heterocycles in an eco-friendly and energy-efficient manner. It provides several benefits like less reaction time, high reaction yield, homogeneous heat distribution leading to lower side reaction, and better control of reaction temperature. Recently there has been significant progress in microwave use for heterocycle synthesis. This article discusses the applications of microwave irradiation in the synthesis of oxygen- and nitrogen-containing fluorinated heterocycles.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46353267","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}
Pub Date : 2022-12-23DOI: 10.2174/2213346110666221223141323
Sasadhar Majhi, I. Saha
Heterocycles are a valuable type of structural motifs which occupy a major space in the area of medicinal, pharmaceutical, and bioactive natural product chemistry as well as synthetic organic chemistry. Most frequently, nitrogen heterocycles represent a highly significant type of compounds that are extensively employed in agrochemistry, materials science, and synthesis of bioactive complex molecules and it also has a profound role in modern drug design. Among N-heterocycles, bioactive N, N-heterocycles play a crucial role in the drug discovery and development process. Benzimidazoles, oxadiazoles, pyrazoles, pyrazolines, pyridazines, pyrimidines, thiadiazoles, triazoles, etc. are important classes of N, N-heterocycles due to their significant physiological and biological activities as well as versatile synthetic utility. For example, compounds containing an oxadiazole core such as phidianidines A and B display cytotoxicity. Zibotentan including 1,3,4-oxadiazole and pyrazine skeletons was accepted for the treatment of prostate cancer by the FDA, and cefozopran (SCE-2787) comprising 1,2,4-thiadiazole core is a powerful commercial antibiotic. So, there is continuing considerable attention to the improvement of efficient, convenient, and eco-friendly synthetic protocols for the formation of pharmaceutically relevant N,N-heterocycles. In this context, visible light-assisted synthesis of bioactive N,N-heterocycles has a great impact on sustainable development as it constitutes a clean, renewable, and abundant energy source, as well as its encouraging application in industry. Hence, this review aims to deal with the understanding of the visible light-promoted synthesis of bioactive N,N-heterocycles and further stimulate the development of more new relevant strategies.
{"title":"Visible light-promoted synthesis of bioactive N, N-heterocycles","authors":"Sasadhar Majhi, I. Saha","doi":"10.2174/2213346110666221223141323","DOIUrl":"https://doi.org/10.2174/2213346110666221223141323","url":null,"abstract":"\u0000\u0000Heterocycles are a valuable type of structural motifs which occupy a major space in the area of medicinal, pharmaceutical, and bioactive natural product chemistry as well as synthetic organic chemistry. Most frequently, nitrogen heterocycles represent a highly significant type of compounds that are extensively employed in agrochemistry, materials science, and synthesis of bioactive complex molecules and it also has a profound role in modern drug design. Among N-heterocycles, bioactive N, N-heterocycles play a crucial role in the drug discovery and development process. Benzimidazoles, oxadiazoles, pyrazoles, pyrazolines, pyridazines, pyrimidines, thiadiazoles, triazoles, etc. are important classes of N, N-heterocycles due to their significant physiological and biological activities as well as versatile synthetic utility. For example, compounds containing an oxadiazole core such as phidianidines A and B display cytotoxicity. Zibotentan including 1,3,4-oxadiazole and pyrazine skeletons was accepted for the treatment of prostate cancer by the FDA, and cefozopran (SCE-2787) comprising 1,2,4-thiadiazole core is a powerful commercial antibiotic. So, there is continuing considerable attention to the improvement of efficient, convenient, and eco-friendly synthetic protocols for the formation of pharmaceutically relevant N,N-heterocycles. In this context, visible light-assisted synthesis of bioactive N,N-heterocycles has a great impact on sustainable development as it constitutes a clean, renewable, and abundant energy source, as well as its encouraging application in industry. Hence, this review aims to deal with the understanding of the visible light-promoted synthesis of bioactive N,N-heterocycles and further stimulate the development of more new relevant strategies.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45214445","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}
Pub Date : 2022-12-13DOI: 10.2174/2213346110666221213092734
Archana Jyoti, Smriti Kushwaha, J. Baranwal, Swastika Singh
In recent decades, green synthesis is increasingly being employed for more environmentally friendly processes and constitutes one central theme of research and development in both academic and industrial chemistry. “Green Chemistry” refers to the design of products and processes that imply the reduction or elimination of substances that are harmful to life or the environment. Due to the benefits of green synthesis, such as reduced waste and expense, not just pharmaceutical firms but also other chemical industries have begun to take steps towards it. Green synthesis techniques include using green solvents, catalysts, and other materials. This review article illustrates the utilization of sustainable methods in the synthesis of biologically active compounds via different green methodologies, such as green solvents, green catalyst, green media, etc. We hope that this chapter will provide a quick overview of the different aspects of green chemistry.
{"title":"A Review on Green Synthesis of Biologically Active Compounds","authors":"Archana Jyoti, Smriti Kushwaha, J. Baranwal, Swastika Singh","doi":"10.2174/2213346110666221213092734","DOIUrl":"https://doi.org/10.2174/2213346110666221213092734","url":null,"abstract":"\u0000\u0000In recent decades, green synthesis is increasingly being employed for more environmentally\u0000friendly processes and constitutes one central theme of research and development in both academic and\u0000industrial chemistry. “Green Chemistry” refers to the design of products and processes that imply the\u0000reduction or elimination of substances that are harmful to life or the environment. Due to the benefits of\u0000green synthesis, such as reduced waste and expense, not just pharmaceutical firms but also other chemical\u0000industries have begun to take steps towards it. Green synthesis techniques include using green solvents,\u0000catalysts, and other materials. This review article illustrates the utilization of sustainable methods in the\u0000synthesis of biologically active compounds via different green methodologies, such as green solvents,\u0000green catalyst, green media, etc. We hope that this chapter will provide a quick overview of the different\u0000aspects of green chemistry.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49560704","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}
Pub Date : 2022-12-12DOI: 10.2174/2213346110666221212152202
B. Banerjee, M. Kaur, Aditi Sharma, Ashutosh Kumar Singh, A. Priya, V. Gupta, V. Jaitak
A facile, convenient and general method has been developed for the one-pot three-component synthesis of structurally diverse 2-amino pyran annulated heterocycles from the reactions of aromatic aldehydes, malononitrile and various C-H activated acids in the presence of a catalytic amount of glycine as an efficient metal-free organocatalyst in aqueous ethanol under refluxed conditions. Using this developed protocol, we were able to synthesize a series of structurally diverse 2-amino pyran derivatives viz., 2-amino-4,5-dihydropyrano[3,2-c]chromenes, 2-amino-4,5-dihydropyrano[4,3-b]pyrans, 2-amino-5,6,7,8-tetrahydro-4H-chromenes, 2'-amino-2,5'-dioxo-5'H-spiro[indoline-3,4'-pyrano[3,2-c]chromene]-3'-carbonitrile and 2'-amino-1,3,5'-trioxo-1,3-dihydro-5'H-spiro[indene-2,4'-pyrano[3,2-c]chromene]-3'-carbonitrile in excellent yields. Synthesis of biologically promising pyrans and spiropyrans, high atom economy, excellent yields, use of metal-free catalyst, less toxic solvents, no chromatographic column purifications, multiple carbon-carbon and carbon-heteroatom bond formations are some of the major advantages of this newly developed protocol.
{"title":"Glycine catalyzed one-pot three-component synthesis of structurally diverse 2-amino substituted pyran annulated heterocycles in aqueous ethanol under refluxed conditions","authors":"B. Banerjee, M. Kaur, Aditi Sharma, Ashutosh Kumar Singh, A. Priya, V. Gupta, V. Jaitak","doi":"10.2174/2213346110666221212152202","DOIUrl":"https://doi.org/10.2174/2213346110666221212152202","url":null,"abstract":"\u0000\u0000A facile, convenient and general method has been developed for the one-pot three-component synthesis of structurally diverse 2-amino pyran annulated heterocycles from the reactions of aromatic aldehydes, malononitrile and various C-H activated acids in the presence of a catalytic amount of glycine as an efficient metal-free organocatalyst in aqueous ethanol under refluxed conditions.\u0000\u0000\u0000\u0000Using this developed protocol, we were able to synthesize a series of structurally diverse 2-amino pyran derivatives viz., 2-amino-4,5-dihydropyrano[3,2-c]chromenes, 2-amino-4,5-dihydropyrano[4,3-b]pyrans, 2-amino-5,6,7,8-tetrahydro-4H-chromenes, 2'-amino-2,5'-dioxo-5'H-spiro[indoline-3,4'-pyrano[3,2-c]chromene]-3'-carbonitrile and 2'-amino-1,3,5'-trioxo-1,3-dihydro-5'H-spiro[indene-2,4'-pyrano[3,2-c]chromene]-3'-carbonitrile in excellent yields.\u0000\u0000\u0000\u0000Synthesis of biologically promising pyrans and spiropyrans, high atom economy, excellent yields, use of metal-free catalyst, less toxic solvents, no chromatographic column purifications, multiple carbon-carbon and carbon-heteroatom bond formations are some of the major advantages of this newly developed protocol.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43027154","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}
Pub Date : 2022-12-01DOI: 10.2174/2213346110666221201163554
A. Zolriasatein
Deacetylation of cellulose acetate restores hydroxyl groups on the surface of fibers and improves hydrophilicity. From an environmental point of view, the conventional deacetylation process involves alkalinity and large effluent volume. The goal of this work is to introduce a new eco-friendly bio-treatment process. In this study, cellulose acetate fabrics were bio-treated with laccase enzyme. Then, the untreated and bio-treated fabrics were dyed with direct and dispersed dyes. Laccase pretreatment improved color strength (16%) and crocking durability. After bio-treatment, the bending rigidity decreased for the warp (17.8) and weft (10.8) directions. The Freundlich model was the best model to describe the adsorption of direct dye onto the untreated fabric. In contrast, the Langmuir model better described the adsorption behavior of bio-treated fabric. Nernst model was suitable for dispersed dye adsorption. The partition coefficient was increased after laccase treatment. Thermodynamic analysis showed that the dye sorption was endothermic and nonspontaneous. It was also found that bio-treated fabrics require less external energy. All performed experiments approved the efficiency of the deacetylation process, which led to an improvement in dyeing properties.
{"title":"Influence of Eco-friendly Pretreatment of Cellulose Acetate Fabric with Laccase Enzyme on the Textile Properties, Dye Adsorption Isotherms, and Thermodynamic Parameters","authors":"A. Zolriasatein","doi":"10.2174/2213346110666221201163554","DOIUrl":"https://doi.org/10.2174/2213346110666221201163554","url":null,"abstract":"\u0000\u0000Deacetylation of cellulose acetate restores hydroxyl groups on the surface of fibers and improves hydrophilicity. From an environmental point of view, the conventional deacetylation process involves alkalinity and large effluent volume. The goal of this work is to introduce a new eco-friendly bio-treatment process.\u0000\u0000\u0000\u0000In this study, cellulose acetate fabrics were bio-treated with laccase enzyme. Then, the untreated and bio-treated fabrics were dyed with direct and dispersed dyes. Laccase pretreatment improved color strength (16%) and crocking durability. After bio-treatment, the bending rigidity decreased for the warp (17.8) and weft (10.8) directions. The Freundlich model was the best model to describe the adsorption of direct dye onto the untreated fabric. In contrast, the Langmuir model better described the adsorption behavior of bio-treated fabric.\u0000\u0000\u0000\u0000Nernst model was suitable for dispersed dye adsorption. The partition coefficient was increased after laccase treatment. Thermodynamic analysis showed that the dye sorption was endothermic and nonspontaneous.\u0000\u0000\u0000\u0000It was also found that bio-treated fabrics require less external energy. All performed experiments approved the efficiency of the deacetylation process, which led to an improvement in dyeing properties.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46278667","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：