Photodegradation of dye pollutants catalyzed by γ-Bi2MoO6 nanoplate under visible light irradiation

被引：87

作者：

Zhao, Xu ^{[1
,2
]}

Xu, Tongguang ^{[2
]}

Yao, Wenqing ^{[2
]}

Zhu, Yongfa ^{[2
]}

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

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

来源：

APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 18期

基金：

美国国家科学基金会;

关键词：

Bismuth molybdates; Photocatalysis; Visible light; Rhodamine B; Methylene blue; DEGRADATION; WATER; PHOTOCATALYSIS; ELECTRODE; BI2WO6;

D O I：

10.1016/j.apsusc.2009.05.010

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：

Nanoplate gamma-Bi2MoO6 is prepared by hydrothermal method. Using this material as photocatalyst, rhodamine B and methylene blue were efficiently degraded under visible light irradiation. The degradation kinetics, total organic carbon changes, and electron spin resonance detection of active oxygen species were investigated to clarify the degradation process. The experimental results indicated that the target dyes could be facilely bleached and mineralized. The formation of active oxygen species of (OH)-O-center dot and O-2 center dot is detected, and they are proposed to be responsible for the degradation of the target dyes. The gamma-Bi2MoO6 catalyst is very stable and can be reused. (C) 2009 Published by Elsevier B.V.

引用

页码：8036 / 8040

页数：5

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