An undoped, single-phase oxide photocatalyst working under visible light

被引:534
作者
Kim, HG
Hwang, DW
Lee, JS
机构
[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea
[2] Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang 790784, South Korea
关键词
D O I
10.1021/ja049676a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A novel photocatalyst, PbBi2Nb2O9 has been discovered that shows high activities for degradation of organic pollutants, generation of photocurrent, and water decomposition into O2 or H2, all under visible right irradiation (λ ≥ 420 nm). This is the first example of an undoped, single-phase oxide photocatalyst that shows such reactivity. Its quantum yields are much higher than those for most of the previously reported materials, especially in water decomposition to generate oxygen (29%). Since it is an oxide, there is much less concern for stability under light irradiation. Copyright © 2004 American Chemical Society.
引用
收藏
页码:8912 / 8913
页数:2
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