Photocatalytic behaviour of Bi2MO6 polymetalates for rhodamine B degradation

被引：81

作者：

Belver, C. ^{[1
]}

Adan, C. ^{[2
]}

Fernandez-Garcia, M. ^{[2
]}

机构：

[1] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

[2] CSIC, Inst Catalisis & Petroleoquim, E-28049 Madrid, Spain

来源：

CATALYSIS TODAY | 2009年 / 143卷 / 3-4期

关键词：

Polymetalates; Aurivillius structure; Photocatalysis; RhB degradation; VISIBLE-LIGHT IRRADIATION; NANOSIZED BI2WO6; HETEROGENEOUS PHOTOCATALYSIS; ORGANIC CONTAMINANTS; WATER-PURIFICATION; POWDER DIFFRACTION; DECOMPOSITION; POLLUTANTS; ENERGY; TIO2;

D O I：

10.1016/j.cattod.2008.09.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Bi2MO6 (M = W or Mo) have been successfully synthesized using the citrate complex method. The samples were characterized by X-ray diffraction, Brunauer-Emmet-Teller surface area and UV-vis spectroscopy. The solids crystallized in the orthorhombic Aurivillius-type structure and display optimum light absorption properties to be used as photocatalysts. The photoactivity power of the samples was investigated systematically using the rhodamine B degradation under different irradiation wavelengths. The behaviour of the solids and the photodegradation mechanism was studied as a function of the irradiation light (UV or visible) employed. Direct solar light was also employed as irradiation source showing that this type of structures could drive to a plausible strategy for developing finest photocatalyst to degrade wastewaters by using solar light. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：274 / 281

页数：8

共 47 条

[1] Preparation, characterization, and reactivities of highly functional titanium oxide-based photocatalysts able to operate under UV-visible light irradiation: Approaches in realizing high efficiency in the use of visible light [J].