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Rapid green synthesis of gold nanocatalyst for high-efficiency degradation of quinclorac

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成果类型:
期刊论文
作者:
Shi, Guorong*;Li, Yulu;Xi, Gaihong;Xu, Qinqin;He, Zijun;...
通讯作者:
Shi, Guorong
作者机构:
[Shi, Guorong; Xu, Qinqin; Cai, Jun; He, Zijun; Li, Yulu] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
[Liu, Yating; Shi, Guorong; Xi, Gaihong] Hunan Agr Univ, Tobacco Res Inst, Changsha 410128, Hunan, Peoples R China.
[Zhang, Jianhui] Hunan Inst Food Qual Supervis Inspect & Res, Changsha 410111, Hunan, Peoples R China.
通讯机构:
[Shi, Guorong] H
Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
语种:
英文
关键词:
Catalyst activity;Catalysts;Dechlorination;Efficiency;Gold;Gold nanoparticles;Nanocatalysts;Nanoparticles;Rate constants;Sodium Borohydride;Yeast;Catalytic dechlorination;Gold nanocatalyst;High-efficiency;Organic solvent-free;Particle diameters;Pseudo-first order kinetic model;Quinclorac;Reductive dechlorination;Gold compounds;carboxylic acid derivative;gold nanoparticle;herbicide;mannoprotein;quinclorac;sodium borohydride;unclassified drug;borane derivative;gold;herbicide;metal nanoparticle;quinclorac;quinoline derivative;catalyst;concentration (composition);dechlorination;degradation;gold;nanoparticle;quinclorac;reaction kinetics;temperature effect;yeast;Article;concentration (parameters);controlled study;dechlorination;degradation;fungal cell wall;green chemistry;nanocatalyst;nonhuman;particle size;rate constant;Saccharomyces cerevisiae;synthesis;temperature;transmission electron microscopy;yeast cell;catalysis;chemistry;halogenation;infrared spectroscopy;kinetics;metabolism;ultraviolet spectrophotometry;X ray diffraction;Saccharomyces cerevisiae;Borohydrides;Catalysis;Gold;Green Chemistry Technology;Halogenation;Herbicides;Kinetics;Metal Nanoparticles;Microscopy, Electron, Transmission;Quinolines;Saccharomyces cerevisiae;Spectrophotometry, Ultraviolet;Spectroscopy, Fourier Transform Infrared;Temperature;X-Ray Diffraction
期刊:
Journal of Hazardous Materials
ISSN:
0304-3894
年:
2017
卷:
335
页码:
170-177
机构署名:
本校为第一且通讯机构
院系归属:
理学院
摘要:
Porous chemical pretreated Saccharomyces cerevisiae was used as support, stabilizer, and reducing agent for the rapid green synthesis of gold nanocatalyst. Au nanoparticles (Au NPs) were generated through in-situ reduction of the absorbed Au(III) by the reductive functional groups of mannoproteins in yeast cell wall. The obtained spherical mono-dispersed Au NPs have an average particle diameter of 9.99±1.63nm as evidenced by TEM image, and exhibits excellent catalytic activity for the dechlorination of quinclorac to 8-quinoline-carboxylic acid...

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