The enhanced photoactivity of nanosized Bi2WO6 catalyst for the degradation of 4-chlorophenol

被引：28

作者：

Fu, Hongbo ^{[1
,2
]}

Yao, Wenqing ^{[2
]}

Zhang, Liwu ^{[2
]}

Zhu, Yongfa ^{[2
]}

机构：

[1] Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China

[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2008年 / 43卷 / 10期

基金：

美国国家科学基金会; 中国博士后科学基金;

关键词：

nanostructures; semiconductors; surface properties;

D O I：

10.1016/j.materresbull.2007.10.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanosized Bi2WO6 catalyst exhibited the enhanced photoactivity for the degradation of 4-chlorophenol (4-CP) under visible irradiation compared to the sample prepared by high-temperature solid reaction. The photoactivity of the catalyst was sensitive to pH variation of the suspension. Nanosized Bi2WO6 catalyst showed the highest activity at pH 7.2. The photodegradation of 4-CP by nanosized Bi2WO6 catalyst followed a pseudo-first-order reaction. After three recycling runs for the photodegraclation of 4-CP, the activity of the catalyst did not show any significant loss, suggesting that the catalyst was stable under visible irradiation. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2617 / 2625

页数：9

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