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

Photocatalytic behavior of a new series of photocatalysts, Ba2Bi(V)Bi(III)O6 and Ba2Sb(V)Bi(III)O6 Oxide photocatalysts, Ba2Bi(V)Bi(III)O6 and Ba2Sb(V)Bi(III)O6, 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 H2 evolution from an aqueous CH3 OH solution under visible light irradiation. The rates of H2 evolution are 0.49 and 0.67 μmol/h for Ba2Bi(V)Bi(III)O6 and Ba2Sb(V)Bi(III)O6, respectively. They also showed activity for photocatalytic O2 evolution from an aqueous AgNO3 solution under visible light irradiation and the rates of O2 evolution were found to be 1.6 and 2.7 μ mol/h, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

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

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Publisher
Brill Academic Publishers
Copyright
Copyright © 2005 by VSP
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/1568567053956716
Publisher site
See Article on Publisher Site

Abstract

Oxide photocatalysts, Ba2Bi(V)Bi(III)O6 and Ba2Sb(V)Bi(III)O6, 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 H2 evolution from an aqueous CH3 OH solution under visible light irradiation. The rates of H2 evolution are 0.49 and 0.67 μmol/h for Ba2Bi(V)Bi(III)O6 and Ba2Sb(V)Bi(III)O6, respectively. They also showed activity for photocatalytic O2 evolution from an aqueous AgNO3 solution under visible light irradiation and the rates of O2 evolution were found to be 1.6 and 2.7 μ mol/h, respectively.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 1, 2005

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