Current Research in Green and Sustainable Chemistry最新文献_第8页

Site-selective electrochemical carboxylation of aromatic C(sp2)–H bonds with CO2 芳香C(sp2) -H键与CO2的选择性电化学羧基化反应

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100377

Rong Zhao , Max Surke , Zhipeng Lin , Ali Alsalme , Lutz Ackermann

引用次数: 0

Hydrothermal liquefaction process: Review and trends 水热液化过程:回顾与趋势

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100382

Esteban Ocampo, Victoria V. Beltrán, Elkin A. Gómez, Luis A. Ríos, David Ocampo

{"title":"Hydrothermal liquefaction process: Review and trends","authors":"Esteban Ocampo, Victoria V. Beltrán, Elkin A. Gómez, Luis A. Ríos, David Ocampo","doi":"10.1016/j.crgsc.2023.100382","DOIUrl":"https://doi.org/10.1016/j.crgsc.2023.100382","url":null,"abstract":"<div><p>The processing of biomass into biofuels has become an increasingly attractive option as a tool against climate change. One of the most relevant technologies is hydrothermal liquefaction, since it allows processing biomass with high water content without the need for prior drying, obtaining as a product a biocrude oil with high energy densification, lower density, and lower heteroatom content compared to other processes such as pyrolysis. In addition, its operating conditions are moderate, with pressure ranges of 100 to 200 bar and temperatures of 200 to 400°C, which are much less drastic conditions than gasification and methanation, competing technologies in the transformation and valorization of biomasses for fuel production. Therefore, this article reviews the current state of research on the hydrothermal liquefaction process through of a bibliometric analysis with scientometric parameters that show the growing interest, the collaboration between countries, the evolution, and trends in research topics.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"7 ","pages":"Article 100382"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086523000280/pdfft?md5=3539d59a914cef00230ddcc64f8c5361&pid=1-s2.0-S2666086523000280-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134831088","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

Treatment of fluoride contaminated water using mango (Mangifera indica) leaves powder as an adsorbent 用芒果叶粉作为吸附剂处理含氟水

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100359

Fazli Aziz , Islamud Din , Fawad Khan , Pervez Manan , Aroosa Sher , Said Hakim

{"title":"Treatment of fluoride contaminated water using mango (Mangifera indica) leaves powder as an adsorbent","authors":"Fazli Aziz , Islamud Din , Fawad Khan , Pervez Manan , Aroosa Sher , Said Hakim","doi":"10.1016/j.crgsc.2023.100359","DOIUrl":"https://doi.org/10.1016/j.crgsc.2023.100359","url":null,"abstract":"<div><p>Excessive levels of Fluoride in water is detrimental to human health as it can cause many health problems including both dental and skeletal fluorosis etc. The aims of the current research work were to prepare a novel check the efficiency of Mango (<em>Mangifera indica</em>) leaves powder (MLP) for fluoride removal as well as to observe the effect of various factors over fluoride adsorption from water. The experiments were performed under batch mode and the results indicated that maximum adsorption efficiency was noticed in the acidic range. The Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR) techniques were applied for adsorbent characterization. Data modeling declared that pseudo second order kinetic model and Langmuir isotherm models were in best fitting. The study concluded that the investigated adsorbent material is suitable for reducing the high fluoride concentration in water to the WHO established level and is suggested as an ecofriendly material for water purification. Conclusively, future research prospects and further modification of mango leaves materials for fluoride adsorption are recommended.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"6 ","pages":"Article 100359"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1630712","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

Graphene oxide nanoparticles a remedy for chromium pollution 氧化石墨烯纳米颗粒是铬污染的补救措施

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100372

Islamud Din , Imran Khan , Fazli Aziz , Aroosa Sher , Said Hakim

{"title":"Graphene oxide nanoparticles a remedy for chromium pollution","authors":"Islamud Din , Imran Khan , Fazli Aziz , Aroosa Sher , Said Hakim","doi":"10.1016/j.crgsc.2023.100372","DOIUrl":"https://doi.org/10.1016/j.crgsc.2023.100372","url":null,"abstract":"<div><p>Chromium (Cr) the most widespread metal is generally found in rocks, animals and plants, while its entrance to the environment occurs from industrial processes e.g. oxidative dyeing, steel works, tanning industries, and chemical industries etc. The study aims were Graphene oxide nanoparticles (GO-NPs) preparation and its evaluation for chromium six (Cr<sup>+6</sup>) removal from water as well as the assessment of the effect of various factors (pH, temperature, contact time etc) over Cr<sup>+6</sup> adsorption. The target adsorbent was prepared by Modified Hummer's method and then it was treated with sodium borohydride (NaBH<sub>4</sub>) for the synthesis of GO-NPs. The characterization was done by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). The results indicated that highest removal (92%) was observed at pH 3 and it was concluded that the nanoparticles were efficient for Cr<sup>+6</sup> adsorption from water. The research work was productive in estimation and optimization of different parameters for the removal of Cr<sup>+6</sup> by GO-NPs. Further chemical modification and activation of the adsorbent is recommended.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"7 ","pages":"Article 100372"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1748600","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

Vitrimer-like of poly (glycerol sebacate) by using zinc acetate, zinc oxide and Amberlyst as catalysts 以乙酸锌、氧化锌和琥珀酸为催化剂制备聚癸二酸甘油类聚合物

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100388

Montree Thongkam , Sairoong Saowsupa , Pesak Rungrojchaipon

{"title":"Vitrimer-like of poly (glycerol sebacate) by using zinc acetate, zinc oxide and Amberlyst as catalysts","authors":"Montree Thongkam , Sairoong Saowsupa , Pesak Rungrojchaipon","doi":"10.1016/j.crgsc.2023.100388","DOIUrl":"https://doi.org/10.1016/j.crgsc.2023.100388","url":null,"abstract":"<div><p>Polyglycerol sebacate (PGS) is elastomeric biodegradable polymer with potential biomedical and green packaging applications. This study focuses on the synthesis of vitrimer-like PGS utilizing various catalysts, including Zinc acetate, Zinc oxide and Amberlyst-15. The investigation of vitrimer-like of PGS polymer by polycondensation of glycerol and sebacic acid with various molar ratio of 1:1, 1:1.25 and 1:1.5 will be studied. The synthetic time and temperature were controlled at 72 h, 120 <sup>°</sup>C, respectively. The prepolymer of PGS had a weight-average molecular weight (Mw.) of 1743. The result of functional group was confirmed by Fourier transforms Infrared spectroscopy (FTIR). The intense C<img>O stretch at 1737 cm<sup>−1</sup> confirms the formation of ester bonds. The intense OH stretch at 3454 cm<sup>−1</sup> indicated hydroxyl groups from hydrogen bonded. When the quantity of catalyst is increased, the results of hardness are rising but swelling (%) becomes lower. The results showed a polymer network has higher cross-link when the catalyst increases. In addition, the proton nuclear magnetic resonance spectroscopy (<sup>1</sup>H NMR) analysis found that PGS using catalyst does not have peaks of glycerol.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"7 ","pages":"Article 100388"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086523000346/pdfft?md5=b21e36a3d6e26166876cb631aa33e836&pid=1-s2.0-S2666086523000346-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138472417","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

Selective electro-oxidation of cumene utilizing a flow reactor equipped with diamond electrodes 利用装有金刚石电极的流动反应器对异丙烯进行选择性电氧化

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100378

Shogo Nihongi , Riyako Matsuoka , Tsuyoshi Saitoh , Yasuaki Einaga , Takashi Yamamoto

引用次数: 0

Comparative study of anti-ulcer drugs with benzimidazole ring as green corrosion inhibitors in acidic solution: Quantum chemical studies 抗溃疡药物与苯并咪唑环在酸性溶液中作为绿色缓蚀剂的比较研究:量子化学研究

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100385

Nushrat Jahan Rinky, Md Mayeedul Islam, Jewel Hossen, Md Al-Amin-Al-Azadul Islam

{"title":"Comparative study of anti-ulcer drugs with benzimidazole ring as green corrosion inhibitors in acidic solution: Quantum chemical studies","authors":"Nushrat Jahan Rinky, Md Mayeedul Islam, Jewel Hossen, Md Al-Amin-Al-Azadul Islam","doi":"10.1016/j.crgsc.2023.100385","DOIUrl":"10.1016/j.crgsc.2023.100385","url":null,"abstract":"<div><p>The corrosion of metals in acidic environments is a grave concern, with the conventional use of commercial corrosion inhibitors leading to environmental toxicity. To address this issue, non-toxic, cost-effective drugs that have a minimal impact on the environment have the potential to replace traditional toxic inhibitors. This study aims to evaluate the molecular orbital properties of benzimidazole-containing drugs such as omeprazole, esomeprazole, and pantoprazole, through density functional theory (DFT), to assess their ability to act as corrosion inhibitors and explore their mechanism of inhibition. The study found that all three compounds have the ability to form a barrier film on the metal surface, with omeprazole being slightly more reactive than the others. Omeprazole and esomeprazole were found to be softer than pantoprazole, indicating that they are more reactive towards the metal surface. The study also found that the active sites of all compounds are located in the benzimidazole ring along with the methyl and methoxy groups. Additionally, the inhibitor molecules are adsorbed onto the metal surface through the active sites by transferring their electrons towards the metal surface. The adsorption energy calculation indicates that Omeprazole and Pantoprazole, with more negative adsorption free energy, exhibit superior corrosion inhibition ability compared to Pantoprazole. Overall, the study provides valuable insights into the potential use of these drugs as effective corrosion inhibitors.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"7 ","pages":"Article 100385"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086523000310/pdfft?md5=dbd1a73eed805551d6a346826f83ba44&pid=1-s2.0-S2666086523000310-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135604271","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

Green trimellitic anhydride and hemimellitic anhydride from malic acid 苹果酸生成绿色偏三酸酐和半偏二酸酐

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100357

Aleksei Ananin, William Bradley, George A. Kraus

引用次数: 0

A comparison of nano-celluloses prepared with various terms of time and sulfuric acid concentration from bagasse derived cellulose: Physicochemical characteristics and process optimization 甘蔗渣纤维素在不同时间和硫酸浓度条件下制备纳米纤维素的比较:理化特性和工艺优化

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100365

Nabiha I. Abdo , Yasser M. Tufik , Sohier M. Abobakr

{"title":"A comparison of nano-celluloses prepared with various terms of time and sulfuric acid concentration from bagasse derived cellulose: Physicochemical characteristics and process optimization","authors":"Nabiha I. Abdo , Yasser M. Tufik , Sohier M. Abobakr","doi":"10.1016/j.crgsc.2023.100365","DOIUrl":"https://doi.org/10.1016/j.crgsc.2023.100365","url":null,"abstract":"<div><p>Cellulose in nano-meter domain or aka nano-cellulose (NC) has enticed much attention from researchers. Segregated cellulose from sugarcane bagasse (SCB) was used in this study, and then hydrolyzed with 40, 50 and 60% sulfuric acid at 45 °C for 90, 30, and 20 min. The impact of the different treatment conditions was evaluated regarding nano-product yields and morphology aspects. The current study discusses the surface morphology, structural and elemental properties of nano-celluloses (NCs). Morphological; X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and elemental analysis; energy dispersive x-ray diffraction (EDX). Morphological characterization showed the figuration of stick-shaped rods and bundles of NCs with size in the ambit of about 34–49 nm. Elemental analysis (EDX) showed multiple elements in NCs with other major compositions. X-ray diffraction appeared that NCs have diverse crystallinity indices at different nanoscales. We have achieved the main challenges based on; The high concentration of acid used, the short reaction time needed and the smallest size using a 60% concentration of acid in a time of 20 min compared to other concentrations used in this study. Extracted NCs presupposed to have a high potency in many applications. Therefore, NCs are considered a modified biomass with great potential to meet global energy demand and encourage environmental sustainability.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"6 ","pages":"Article 100365"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1515344","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

Additive manufacturing technologies applied to the electrochemical valorization of biomass 增材制造技术在生物质电化学增值中的应用

Current Research in Green and Sustainable Chemistry Pub Date : 2023-01-01 DOI: 10.1016/j.crgsc.2023.100386

Gianluca Palmara, David Carvajal, Marcileia Zanatta, Elena Mas-Marza, Victor Sans

{"title":"Additive manufacturing technologies applied to the electrochemical valorization of biomass","authors":"Gianluca Palmara, David Carvajal, Marcileia Zanatta, Elena Mas-Marza, Victor Sans","doi":"10.1016/j.crgsc.2023.100386","DOIUrl":"https://doi.org/10.1016/j.crgsc.2023.100386","url":null,"abstract":"<div><p>Biomass valorization is gaining recognition as a sustainable and easily accessible renewable option to produce fuels and chemicals non-derived from fossil fuels, thus contributing to the decarbonization of the energy and chemical industries. Electrosynthesis represents a potent and advantageous method to transform biomass-based compounds into added-value products, surpassing conventional synthetic pathways in various aspects. Nevertheless, technical and geometrical constraints preclude its widespread implementation and development. Within this context, additive manufacturing has the potential to emerge as a disruptive technology in the field of electrochemical reactions, enabling the creation of custom-designed cells and reactors with intricate geometry. This perspective article delves into the applications of this innovative and widely accessible technology in organic electrosynthesis for biomass valorization, highlighting its potential to enhance performance, optimize mass transport phenomena, and facilitate the design of efficient and scalable electrochemical systems for various applications.</p></div>","PeriodicalId":296,"journal":{"name":"Current Research in Green and Sustainable Chemistry","volume":"7 ","pages":"Article 100386"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666086523000322/pdfft?md5=2259f2446b06627145afdb9caef31bef&pid=1-s2.0-S2666086523000322-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134651491","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