Preparation of ordered mesoporous Ag/WO3 and its highly efficient degradation of acetaldehyde under visible-light irradiation

被引：159

作者：

Sun, Songmei ^{[1
]}

Wang, Wenzhong ^{[1
]}

Zeng, Shaozhong ^{[1
]}

Shang, Meng ^{[1
]}

Zhang, Ling ^{[1
]}

机构：

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

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2010年 / 178卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

Photocatalyst; Tungsten trioxide; Silver loaded; Mesoporous structure; ENHANCED PHOTOCATALYTIC ACTIVITY; DRIVEN PHOTOCATALYSTS; TITANIUM-DIOXIDE; TUNGSTEN-OXIDE; THIN-FILMS; TIO2; WO3; OXIDATION; NANOCOMPOSITES; RECOMBINATION;

D O I：

10.1016/j.jhazmat.2010.01.098

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A highly active photocatalyst, silver loaded mesoporous WO3, was successfully synthesized by an ultrasound assisted insertion method. The photodegradation of a common air pollutant acetaldehyde was adopted to evaluate the photocatalytic performance of the as-prepared sample under visible-light irradiation. The photocatalytic activity was about three and six times higher than that of pure mesoporous WO3 and nitrogen-doped TiO2, respectively. The photocatalytic mechanism was investigated to understand the much enhanced photocatalytic activity, which was mainly attributed to the largely improved electron-hole separation in the Ag-WO3 heterojunction. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：427 / 433

页数：7

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