Photocatalytic behavior of a new series of photocatalysts, Ba2Bi(v)Bi(III)O6 and Ba2Sb(V)Bi(III)O6

被引：5

作者：

Li, ZS

Xu, N

Chen, YF

Zou, ZG

机构：

[1] AIST, PCRC, Tsukuba, Ibaraki 3058565, Japan

[2] Nanjing Univ, ERERC, Nanjing 210093, Peoples R China

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2005年 / 31卷 / 4-6期

关键词：

photocatalysis; (Ba2BiBiO6)-Bi-(V)-O-(III); BaZSb((V))Bi((III))O(6); water splitting; UV-Vis diffuse reflectance spectroscopy;

D O I：

10.1163/1568567053956716

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Oxide photocatalysts, (Ba2BiBiO6)-Bi-(V)-O-(III) and (Ba2SbBiO6)-Bi-(V)-O-(III) with the same monoclinic structure, were synthesized by a solid state reaction method. Their band gaps were determined by UV-Vis diffuse reflectance spectroscopy to be about 2.2 and 1.7 eV, respectively. These photocatalysts showed photocatalytic H-2 evolution from an aqueous CH3OH solution under visible light irradiation. The rates of H-2 evolution are 0.49 and 0.67 mu mol/h for (Ba2BiBiO6)-Bi-(V)-O-(III) and (Ba2SbBiO6)-Bi-(V)-O-(III), respectively. They also showed activity for photocatalytic O-2 evolution from an aqueous AgNO3 solution under visible light irradiation and the rates of O-2 evolution were found to be 1.6 and 2.7 mu mol/h, respectively.

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页码：529 / 534

页数：6

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