Design of unique titanium oxide photocatalysts by an advanced metal ion-implantation method and photocatalytic reactions under visible light irradiation

被引：230

作者：

Anpo, M ^{[1
]}

Ichihashi, Y ^{[1
]}

Takeuchi, M ^{[1
]}

Yamashita, H ^{[1
]}

机构：

[1] Univ Osaka Prefecture, Dept Appl Chem, Sakai, Osaka 599, Japan

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 1998年 / 24卷 / 02期

关键词：

TiO2; Visible Light Irradiation; Visible Light Region; TiO2 Catalyst; Photocatalytic Decomposition;

D O I：

10.1163/156856798X00735

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The metal ion-implantation of titanium oxide with various transition metal ions was carried out by applying by high voltage acceleration. The subsequent calcination of the implanted TiO(2) in oxygen at around 723 K resulted in a large shift in the absorption spectra of the TiO(2) toward visible light regions, its extent being dependent on the amount and the kind of metal ions implanted. Such metal ion-implanted titanium oxide catalysts were active in carrying out various photocatalytic reactions such as the decomposition of NO into N(2), O(2) and N(2)O at 275 K under irradiation with visible light longer than 450 nm. The application of this advanced, high energy metal ion-implantation method enables the novel design of titanium oxide photocatalysts which can absorb and initiate vital reactions under visible light and will contribute to the development of catalytic systems utilizing solar energy.

引用

页码：143 / 149

页数：7