Photocatalytic activities of TiO2 thin films coated on different glass substrates -: Influence of the diffused ions from the glass substrates and the properties of the TiO2 thin films

被引：0

作者：

Nam, HJ ^{[1
]}

Amemiya, T ^{[1
]}

Murabayashi, M ^{[1
]}

Itoh, F ^{[1
]}

机构：

[1] Yokohama Natl Univ, Grad Sch Environm & Informat Sci, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan

来源：

ELECTROCHEMISTRY | 2004年 / 72卷 / 08期

关键词：

TiO2 thin film; Na+; crystallite size; photocatalytic activity;

D O I：

10.5796/electrochemistry.72.544

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Physical properties and photocatalytic activity of TiO2 thin films coated on various glass substrates were investigated in order to elucidate factors affecting the photocatalytic activity and the role of Na+ ions diffusing from glass substrates. The most predominant factor was found to be crystal size of the TiO2 thin film. The Na+ ions affected the photocatalytic activity by changing the formation temperature of anatase as well as the crystallite size of TiO2 thin film. Na+ appears not to work as a recombination center of electrons and holes contrary to the conventionally accepted mechanism.

引用

页码：544 / 549

页数：6

共 29 条

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