Photocatalytic activity of high-vacuum annealed CdS-TiO2 thin film

被引：25

作者：

Biswas, S. ^{[1
]}

Hossain, M. F. ^{[2
]}

Takahashi, T. ^{[2
]}

Kubota, Y. ^{[3
]}

Fujishima, A. ^{[4
]}

机构：

[1] Toyama Univ, Venture Business Lab, Toyama 9308555, Japan

[2] Toyama Univ, Grad Sch Sci & Engn Res, Toyama 9308555, Japan

[3] Yokohama City Univ, Grad Sch Med, Dept Urol & Mol Sci, Kanazawa Ku, Kanagawa 2360004, Japan

[4] Kanagawa Acad Sci & Technol, Kanagawa 2130012, Japan

来源：

THIN SOLID FILMS | 2008年 / 516卷 / 21期

基金：

日本学术振兴会;

关键词：

photocatalysis; chemical bath deposition; titanium oxide;

D O I：

10.1016/j.tsf.2008.01.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CdS-TiO2 thin film heterojunctions were prepared on glass and indium, tin oxide (ITO) substrates with the aim of improving photocatalytic efficiency both in UV-visible and visible light irradiation. The CdS under-layers were prepared by chemical bath deposition technique and subsequently they were annealed in the high vacuum of 5 x 10(-5) Pa at the temperature of 400 degrees C. The structural and optical properties of all the CdS-TiO2 thin films were studied with the help of X-ray diffractometer, atomic force microscope and ultraviolet-visible spectrophotometer. The photocatalytic activity of the thin films was evaluated by the decomposition of methanol by the use of fourier transform infrared spectrophotometer. It is revealed that the use of ITO substrate and high-vacuum annealing after deposition significantly enhance photocatalytic activity. (c) 2008 Elsevier B.V All rights reserved.

引用

页码：7313 / 7317

页数：5

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