Bi2WO6 with significantly enhanced photocatalytic activities by nitrogen doping

被引：93

作者：

Shang, Meng ^{[1
]}

Wang, Wenzhong ^{[1
]}

Zhang, Ling ^{[1
]}

Xu, Haolan ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2010年 / 120卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Semiconductors; Inorganic compounds; Chemical synthesis; Visible and ultraviolet spectrometers; LIGHT-INDUCED DEGRADATION; TITANIUM-DIOXIDE; SURFACE FLUORINATION; TIO2; PHOTOCATALYSTS; RHODAMINE-B; SEMICONDUCTOR; MICROSTRUCTURES; OXIDATION; SULFITE; OXIDES;

D O I：

10.1016/j.matchemphys.2009.10.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The nitrogen-doped Bi2WO6 were synthesized via a facile hydrothermall process. Systematic analysis of the photocatalytic activities of N-doped Bi2WO6 photocatalysts with a wide range of doping levels was carried out. The effects of nitrogen doping on the crystal structure, optical properties, and photocatalytic activities of the Bi2WO6 catalyst were investigated. The results showed that the doped samples exhibit 2-3 times higher photocatalytic activities than the undoped one, which was strongly dependent on the N-doping level. Close investigation revealed that doping Bi2WO6 with N could not only broaden the range of light adsorption in the visible region, but also inhibit the photogenerated electron-hole recombination losses and increased the transfer rate, which might be ascribed to the significantly enhanced photocatalytic activities. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：155 / 159

页数：5

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