Enhanced visible light photocatalytic activity of QDS modified Bi2WO6 nanostructures

被引：36

作者：

Cui, Zhankui ^{[2
]}

Zeng, Dawen ^{[1
,2
]}

Tang, Tengteng ^{[1
]}

Liu, Jun ^{[1
]}

Xie, Changsheng ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Mat Sci & Engn, Nanomat & Smart Sensors Lab, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2010年 / 11卷 / 13期

关键词：

QDS; Bi2WO6; Nanosheet; Homojunction; Photocatalysis; DECOMPOSITION; NANOCRYSTALS; IRRADIATION; WATER; TIO2;

D O I：

10.1016/j.catcom.2010.05.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bi2WO6 (BWO) nanostructures with QDS dispersed on single crystalline nanosheets were successfully prepared by a facile solvothermal method. The product possessed large surface area of 60 m(2)/g and exhibited excellent visible light absorption with a blue shift from 2.54 eV to 2.75 eV. The photocatalytic efficiency of the sample was six times that of nanoparticles assembled BWO nanostructures and three times that of nanoplates assembled BWO nanostructures. The photocatalytic mechanism for degradation of dyes over QDS modified BWO nanostructures was discussed, which revealed the important role of QDS in the generation, migration and consumption of the photogenerated electrons and holes. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1054 / 1057

页数：4

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