Preparation and photoelectrocatalytic activity of Pt(TiO2)-TiO2 hybrid films

被引：22
|
作者：
He, C
Xiong, Y [1 ]
Shu, D
Zhu, XH
Li, XZ
机构：
[1] Zhongshan Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China
[2] Zhaoqing Univ, Dept Chem, Zhaoqing 526061, Peoples R China
[3] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
来源：
THIN SOLID FILMS | 2006年 / 503卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
photocatalysis; Pt; TiO2; formic acid; photoelectrocatalysis;
D O I：
10.1016/j.tsf.2005.04.124
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel platinised TiO2 film, Pt(TiO2)-TiO2, was prepared by a two-step procedure in which TiO2 as a 'binding layer' was first loaded oil ITO (indium-tin oxide) conductive glass plates, and then the platinised TiO2 particles in the suspension was dip-coated oil the TiO2 film. The resultant hybrid film was characterized by X-ray reflection diffraction, scanning electron microscope, diffuse reflectance spectra and photoelectrochemical measurement. The experimental results showed that the Pt(TiO2)-TiO2/ITO hybrid film not only was much more stable than the single Pt(TiO2)/ ITO film but also possessed rather high photocatalytic and photoelectrocatalytic activities compared with the pure TiO2/ITO film. With respect to formic acid solution, the chemical-oxygen-demand removal efficiency of photoelectrocatalytic, oxidation for Pt(TiO2)-TiO2/ITO film is apparently higher than that of photocatalytic and photoelectrocatalytic oxidation of TiO2/ITO film, respectively. (c) 2005 Elsevier B.V. All rights reserved.
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页码：1 / 7
页数：7
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