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
收藏
页码：544 / 549
页数：6
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