Photo-Fenton like degradation of tetrabromobisphenol A with graphene-BiFeO3 composite as a catalyst

被引：128

作者：

An, Junjian ^{[1
]}

Zhu, Lihua ^{[1
]}

Wang, Nan ^{[1
]}

Song, Zhou ^{[1
]}

Yang, Zeyu ^{[2
]}

Du, Dongyun ^{[2
]}

Tang, Heqing ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Coll Chem & Chem Engn, Wuhan 430074, Peoples R China

[2] South Cent Univ Nationalities, Coll Chem & Mat Sci, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2013年 / 219卷

基金：

中国博士后科学基金; 国家高技术研究发展计划(863计划);

关键词：

Graphene; BiFeO3; Photo-Fenton process; Oxidative degradation; Tetrabromobisphenol A; PHOTOCATALYTIC ACTIVITY; OXIDATIVE-DEGRADATION; ORGANIC POLLUTANTS; HYDROGEN-PEROXIDE; FLAME RETARDANTS; RAMAN-SPECTRA; BIFEO3; OXIDE; NANOPARTICLES; TEMPERATURE;

D O I：

10.1016/j.cej.2013.01.013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Graphene-BiFeO3 nanoscaled composites were prepared with a sol-gel method and evaluated as highly efficient photo-Fenton like catalyst under visible light irradiation. The graphene-BiFeO3 composite had a specific surface area of 35.07 m(2) g(-1), being considerably larger than that of BiFeO3 nanoparticles (7.50 m(2) g(-1)). The composite exhibited excellent visible light-Fenton like catalysis activity, being influenced by calcination temperature, graphene content and solution pH value. Under optimal conditions with visible light irradiation, the graphene-BiFeO3 composite yielded fast degradation of tetrabromobisphenol A with a apparent rate constant of 1.19 min(-1), which was 5.43 and 3.68 folds of that achieved by using BiFeO3 and the mixture of BiFeO3 and graphene, respectively. The significantly enhanced visible light-Fenton like catalytic properties of the graphene BiFeO3 composite in comparison with that of BiFeO3 was attributed to a large surface area, much increased adsorption capacity and the strong electron transfer ability of graphene in the composite. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：225 / 237

页数：13

共 51 条

[1] PHOTOMETRIC-METHOD FOR THE DETERMINATION OF LOW CONCENTRATIONS OF HYDROGEN-PEROXIDE BY THE PEROXIDASE CATALYZED OXIDATION OF N,N-DIETHYL-P-PHENYLENEDIAMINE (DPD) [J].