Preparation and photocatalytic activity of WO3/TiO2 nanocomposite particles

被引：158

作者：

Ke, Dingning ^{[1
]}

Liu, Huajun ^{[1
]}

Peng, Tianyou ^{[1
,2
]}

Liu, Xun ^{[1
]}

Dai, Ke ^{[1
]}

机构：

[1] Wuhan Univ, Ctr Nanosci & Nanotechnol Res, Dept Chem, Wuhan 430072, Peoples R China

[2] S Cent Univ Nationalities, Coll Chem & Mat Sci, Hubei Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 03期

基金：

中国国家自然科学基金;

关键词：

catalysts; nanocomposites; titanium dioxide; tungsten oxide; rhodamine B;

D O I：

10.1016/j.matlet.2007.05.060

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel photocatalyst WO3/TiO2 nanocomposite was prepared through a hydrothermal method by using cetyltrimethylammonium bromide (CTAB) as surfactant. The obtained WO3/TiO2 was characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM) and diffused reflectance spectroscopy (DRS). Photocatalytic experiments indicate that the nanocomposites show much higher photoactivity than that of pure TiO2 in the photodegradation reaction of Rhodamine B (RhB). The increased photoactivity Of WO3/TO2 may be attributed to the improvement of the light absorption properties and the slow down of the recombination between the photoexcited electrons and holes during the photoreaction. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：447 / 450

页数：4

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