A novel photocatalyst BiSbO4 for degradation of methylene blue

被引：138

作者：

Lin, Xin P.

Huang, Fu Q. ^{[1
]}

Wang, Wen D.

Zhang, Ke L.

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2006年 / 307卷 / 02期

基金：

中国国家自然科学基金;

关键词：

photocatalyst; BiSbO4; MB;

D O I：

10.1016/j.apcata.2006.03.057

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 [物理化学]; 081704 [应用化学];

摘要：

BiSbO4 powder was synthesized by a solid state reaction method. The sample was characterized by X-ray diffraction and UV-vis diffuse reflectance spectra. BiSbO4 is an indirect gap material with the intrinsic band gap of 2.75 eV. It possesses a fair activity for visible-light-driven photocatalysis. The results concerning methylene blue photodecomposition generally show that the catalytic efficiency of BiSb04 is slightly higher than that of rutile-type TiO2 under UV light irradiation. The 3-5 wt% RuO2 sensitization causes about three-time increase in catalytic efficiency. The photocatalytic activity is discussed in close connection with calculated band structure and crystal structure. In this article, the effects of powder concentration and pH value in suspending aqueous solution are also presented. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：257 / 262

页数：6

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