Current Green Chemistry最新文献_第10页

Efficient Catalytic Upgrade of Fructose to Alkyl Levulinates with Phenylpyridine- phosphotungstate Solid Hybrids 苯吡啶-磷钨酸盐固体杂化物催化果糖高效升级制备乙酰丙酸烷基酯

IF 2.2

Current Green Chemistry Pub Date : 2019-03-31 DOI: 10.2174/2213346105666181112112330

Chengjiang Fang, Yan Li, Zhaozhuo Yu, Hu Li, Song Yang

{"title":"Efficient Catalytic Upgrade of Fructose to Alkyl Levulinates with Phenylpyridine- phosphotungstate Solid Hybrids","authors":"Chengjiang Fang, Yan Li, Zhaozhuo Yu, Hu Li, Song Yang","doi":"10.2174/2213346105666181112112330","DOIUrl":"https://doi.org/10.2174/2213346105666181112112330","url":null,"abstract":"\u0000\u0000Biomass, as the most abundant and renewable organic carbon source, can be upgraded into\u0000various value-added platform molecules. To implement more sustainable and economic catalytic biomass\u0000valorization, reusable heterogeneous catalysts would be one of the preferable choices. In this\u0000work, a series of phosphotungstic acid-based solid hybrids were produced by assembly of phosphotungstic\u0000acid with different pyridines using a facile solvothermal method. The obtained 3-\u0000phenylpyridine-phosphotungstate hybrid displayed superior catalytic performance in the upgrade of\u0000fructose to methyl levulinate with 71.2% yield and 83.2% fructose conversion at 140 ºC for 8 h in\u0000methanol, a bio-based and environmentally friendly solvent, which was probably due to its relatively\u0000large pore size and high hydrophobicity. This low-cost and eco-friendly catalytic process could be\u0000simply operated in a single pot without cumbersome separation steps. In addition, the 3-\u0000phenylpyridine-phosphotungstate catalyst was able to be reused for four times with little deactivation.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2174/2213346105666181112112330","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46634411","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: 9

Perspective in Green Chemistry for Organoselenium Compounds (no more an oxymoron) 有机硒化合物的绿色化学展望(不再是矛盾修饰法)

IF 2.2

Current Green Chemistry Pub Date : 2019-03-31 DOI: 10.2174/221334610601190329164654

C. Santi

引用次数: 1

Catalyst-Free Glycerol Promoted Green Synthesis of 2-amino-1,8- naphthyridine -3-carbonitriles and 2-amino-3-quinolinecarbonitriles 无催化剂甘油促进2-氨基-1,8-萘啶-3-腈和2-氨基-3-喹啉腈的绿色合成

IF 2.2

Current Green Chemistry Pub Date : 2019-03-31 DOI: 10.2174/2452273203666190114145322

K. N. Shivhare, Anushree Srivastava, I. Siddiqui

引用次数: 1

Adsorptive-removal of Bromothymol Blue as Acidic-dye Probe from Water Solution Using Latvian Sphagnum Peat Moss: Thermodynamic Assessment, Kinetic and Isotherm Modeling 拉脱维亚泥炭藓吸附去除水溶液中溴百摩尔蓝酸性染料探针的热力学评价、动力学和等温模型

IF 2.2

Current Green Chemistry Pub Date : 2019-03-31 DOI: 10.2174/2452273203666190114144546

S. Lubbad, Balsam Kamal Abu Al-Roos, F. S. Kodeh

{"title":"Adsorptive-removal of Bromothymol Blue as Acidic-dye Probe from Water Solution Using Latvian Sphagnum Peat Moss: Thermodynamic Assessment, Kinetic and Isotherm Modeling","authors":"S. Lubbad, Balsam Kamal Abu Al-Roos, F. S. Kodeh","doi":"10.2174/2452273203666190114144546","DOIUrl":"https://doi.org/10.2174/2452273203666190114144546","url":null,"abstract":"\u0000\u0000A green and environmental–friendly method for the removal of the hazardous bromothymol\u0000blue from aqueous solution was considered applying a hydrophilic, biocompatible and biodegradable\u0000natural sorbent of Latvian sphagnum peat moss, applying shaking-dispersive solid-phase extraction.\u0000First, the influence of shaking speed was evaluated at 300, 600, 900 U. Furthermore, the optimum\u0000conditions of dye-adsorption, such as pH, adsorption-equilibrium contact time, adsorbent mass, and\u0000adsorbate initial concentration were investigated. In addition, the adsorption equilibrium isotherms,\u0000thermodynamics, and kinetics were studied. Thus, the optimum removal of bromothymol blue was\u0000concluded at a shaking speed of 600 U. Regarding the dye adsorption at different pH, bromothymol\u0000blue showed two removal maxima at acidic (pH 2.5) and almost neutral (pH 7.5) media, reaching\u0000dye % removal of 80.8 and 88.2 %, respectively, in 120 min of adsorption equilibrium contact time.\u0000Moreover, the dye removal improved reasonably by increasing the concentration and the sphagnum\u0000dose. Additionally, the equilibrium isotherm plot correlated comparably to Langmuir's and Freundlich's\u0000models. Also, the adsorption kinetic study demonstrated a better correlation to pseudo-secondorder\u0000plot than to pseudo-first-order one. Finally, excellent reproducibility in % removal was demonstrated\u0000with RSD values of 2.2 and 2.7% at pH of 7.5 and 2.5, respectively.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2174/2452273203666190114144546","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44455443","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: 15

Polyaniline Supported Palladium Catalyzed Reductive Degradation of Dyes Under Mild Condition 聚苯胺负载钯在温和条件下催化还原降解染料

IF 2.2

Current Green Chemistry Pub Date : 2019-03-31 DOI: 10.2174/2213346106666190130101109

Moumita Roy, A. Mondal, Arijit Mondal, A. Das, D. Mukherjee

引用次数: 11

Meet Our Editorial Board Member 见见我们的编辑委员会成员

IF 2.2

Current Green Chemistry Pub Date : 2018-12-10 DOI: 10.2174/221334610503181123143506

L. Pasqua

引用次数: 0

Ultrasonically Assisted Efficient and Green Protocol for the Synthesis of Bisindolylmethanes Using Malic Acid as a Homogeneous and Reusable Organocatalyst 以苹果酸为均相、可重复使用的有机催化剂，超声辅助高效绿色合成双吲哚甲烷

IF 2.2

Current Green Chemistry Pub Date : 2018-12-10 DOI: 10.2174/2213346105666180821114459

S. B. Kasar, S. Thopate

引用次数: 5

Evaluation of Green Sample Preparation Techniques for Organic Compounds 有机化合物绿色样品制备技术评价

IF 2.2

Current Green Chemistry Pub Date : 2018-12-10 DOI: 10.2174/2213346105666181112124629

M. Fabjanowicz, K. Kalinowska, J. Namieśnik, J. Płotka-Wasylka

{"title":"Evaluation of Green Sample Preparation Techniques for Organic Compounds","authors":"M. Fabjanowicz, K. Kalinowska, J. Namieśnik, J. Płotka-Wasylka","doi":"10.2174/2213346105666181112124629","DOIUrl":"https://doi.org/10.2174/2213346105666181112124629","url":null,"abstract":"Nowadays, Green Analytical Chemistry (GAC) idea is of high importance, with impact on\u0000the rapid growth in the sample preparation area with special emphasis on sample preparation simplification,\u0000miniaturization and automation. Due to the fact that GAC is of high importance today, this\u0000study is focused on the evaluation of green sample preparation techniques for organic compounds. It is\u0000well known that sample preparation is considered a crucial part of analytical procedures, particularly\u0000in samples characterized by complex matrices composition. The parameter of “greenness” is as important\u0000as selectivity in order to avoid using harmful organic solvents in sustainable extraction techniques.\u0000These solvents can generate hazardous, toxic waste while consuming large resources volume,\u0000thus, developing new, eco-friendly and benign solvents which would meet technological and economic\u0000demands is perhaps the most popular aspects of Green Chemistry. Some examples of these\u0000“green” solvents are given in this work. In addition, several new miniaturized extraction techniques\u0000are described. Here you can highlight solid phase microextraction (SPME) and liquid phase\u0000microextraction (LPME). However, the best option would be to use direct methods of analysis, where\u0000sample preparation is not required. The given study also shows the possibilities and limitations of\u0000using Eco-Scale and GAPI tools for the assessment of the green character of selected analytical\u0000procedures. Both tools were applied to assess 9 different analytical procedures and both showed\u0000similar results presented in a different manner.","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45027674","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: 6

Investigations Related to the Suitability of Imidazolium Based Room Temperature Ionic Liquids and Pyridinium based Sponge Ionic Liquids Towards the Synthesis of 2-aminothiazole Compounds as Reaction Medium and Catalyst 咪唑基室温离子液体和吡啶基海绵离子液体作为反应介质和催化剂合成2-氨基噻唑化合物的适宜性研究

IF 2.2

Current Green Chemistry Pub Date : 2018-12-10 DOI: 10.2174/2213346105666181001111019

C. Sarode, G. Gupta, G. Chaudhari, G. P. Waghulde

引用次数: 2

Perspectives in Green Chemistry – Microwave Irradiation as a Substitute for Catalysts; Case Studies from Organophosphorus Chemistry 绿色化学展望——微波辐射代替催化剂；有机磷化学案例研究

IF 2.2

Current Green Chemistry Pub Date : 2018-11-30 DOI: 10.2174/221334610503181123143409

G. Keglevich

引用次数: 0