Influence of metal (Au, Ag) micro-grid on the photocatalytic activity of TiO2 film

被引：20

作者：

Cai, Chao ^{[1
]}

Zhang, Junying ^{[1
]}

Pan, Feng ^{[1
]}

Zhang, Weiwei ^{[1
]}

Zhu, Hailing ^{[1
]}

Wang, Tianmin ^{[1
]}

机构：

[1] Beihang Univ, Sch Sci, Ctr Mat Phys & Chem, Beijing 100083, Peoples R China

来源：

CATALYSIS LETTERS | 2008年 / 123卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

photocatalyst; metal micro-grid; microsphere lithography strategy;

D O I：

10.1007/s10562-007-9392-2

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：

In this paper, we prepared TiO2 thin film with the surface modified by a connected Au micro-grid via a microsphere lithography strategy, and the modified films show higher photocatalytic activity than the pure TiO2 film. The photocatalytic activity improved as Au loading increased, obtaining the best performance at a certain loading amount, and then decreased at higher loading amount. This behavior, not observed in TiO2 films modified with Ag micro-grid, can be attributed to the relationship between the energetic positions and the metal clusters size.

引用

页码：51 / 55

页数：5

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