Fabrication of heterojunction SnO2/BiVO4 composites having enhanced visible light photocatalystic activity

被引：35

作者：

Yin, Jiazhi ^{[1
,3
]}

Huang, Shaobin ^{[1
,2
,3
]}

Jian, Zicong ^{[1
,3
]}

Wang, Zhixin ^{[1
,3
]}

Zhang, Yongqing ^{[1
,2
]}

机构：

[1] S China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China

[2] S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China

[3] Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou 510006, Guangdong, Peoples R China

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2015年 / 34卷

关键词：

SnO2; BiVO4; Degradation; Heterojunction; Photocatalytic performance; Visible light; METHYLENE-BLUE; HYDROTHERMAL SYNTHESIS; NANOTUBE ARRAYS; DEGRADATION; BIVO4; PERFORMANCE; TIO2; NANOPARTICLES; IRRADIATION; PHOTOANODE;

D O I：

10.1016/j.mssp.2015.02.044

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

SnO2/BiVO4 heterojunction composite photocatalysts with various mole ratios have been prepared via a simple hydrothermal method. The structure, composition and optical properties of the SnO2/BiVO4 composites were determined by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface analysis, X-ray photoelectron spectroscopy (XPS) and UV-vis diffuse reflectance spectroscopy (UV-vis DRS). Photocatalytic activities of the composites were evaluated by studying the degradation Of methylene blue (MB) solutions under simulated visible light irradiation (500W halogen tungsten lamp). The 3:7 mol ratio SnO2/BiVO4 composite exhibited the highest photocatalytic performance, leading to 72% decompositon of MB within 120 min of irradiation. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：198 / 204

页数：7

共 43 条

[1] Photocatalysis in water environments using artificial and solar light [J].