Photocatalytic activities of AgSbO3 under visible light irradiation

被引：119

作者：

Kako, Tetsuya ^{[1
]}

Kikugawa, Naoki ^{[1
]}

Ye, Jinhua ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Photocatalyt Mat Ctr, Tsukuba, Ibaraki 3050047, Japan

来源：

CATALYSIS TODAY | 2008年 / 131卷 / 1-4期

关键词：

visible light sensitive photocatalyst; electronic band structure; O-2; evolution; decomposition of organics;

D O I：

10.1016/j.cattod.2007.10.094

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel visible light sensitive photocatalyst, AgSbO3 was prepared by a conventional solid-state reaction method. This oxide belonging to a cubic-pyrochlore structure can absorb visible light with wavelength up to about 480 nm. From the band structure calculation, we found that the top of the valence band consists of the hybridized Ag 4d and O 2p orbitals and the bottom of the conduction band mainly consists of the Ag 5s and the Sb 5s orbitals. Photocatalytic activities were evaluated using O-2 evolution from an aqueous silver nitrate solution and decomposition of gaseous 2-propanol under visible light irradiation. We found that AgSbO3 shows a higher O-2 evolution activity than WO3 and 2-propanol call be mineralized by the AgSbO3 photocatalysis under visible light irradiation. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：197 / 202

页数：6

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