Photocatalytic activities of noble metal ion doped SrTiO3 under visible light irradiation

被引：812

作者：

Konta, R

Ishii, T

Kato, H

Kudo, A ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Appl Chem, Fac Sci, Shinjyuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan

[2] CREST, JST, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 26期

关键词：

D O I：

10.1021/jp049556p

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：

Mn-, Ru-, Rh-, and Ir-doped SrTiO3 possessed intense absorption bands in the visible light region due to excitation from the discontinuous levels formed by the dopants to the conduction band of the SrTiO3 host. Mn- and Ru-doped SrTiO3 showed photocatalytic activities for O-2 evolution from an aqueous silver nitrate solution while Ru-, Rh-, and Ir-doped SrTiO3 loaded with Pt cocatalysts produced H-2 from an aqueous methanol solution under visible light irradiation (lambda > 440 nm). The Rh(1%)-doped SrTiO3 photocatalyst loaded with a Pt cocatalyst (0.1 wt %) gave 5.2% of the quantum yield at 420 nm for the H-2 evolution reaction.

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页码：8992 / 8995

页数：4

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