Structural characterization and photocatalytic behavior of β-KInW2O8

Structural characterization and photocatalytic behavior of β-KInW2O8 A photocatalyst KInW2O8 (β phase) with InO6 octahedra was synthesized and its physical and photophysical properties were characterized by XRD, BET measurement, UV-visible diffuse reflectance, respectively. For the first time, the photocatalytic H2 and O2 evolution on this material were investigated in detail. The results showed that O2 could be evolved at an initial rate of 2.1 μmol/g per h under visible light irradiation. Furthermore, H2 could be obtained at an average rate of 1.21 μmol/g per h and O2 at an initial rate of 4.26 μmol/g per h under full arc irradiation. Based on these results, the band structure of the photocatalyst was suggested, indicating that the introduction of indium changed the electronic structure of the W-based oxide. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Structural characterization and photocatalytic behavior of β-KInW2O8

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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.
10.1163/1568567053956770
Publisher site
See Article on Publisher Site

Abstract

A photocatalyst KInW2O8 (β phase) with InO6 octahedra was synthesized and its physical and photophysical properties were characterized by XRD, BET measurement, UV-visible diffuse reflectance, respectively. For the first time, the photocatalytic H2 and O2 evolution on this material were investigated in detail. The results showed that O2 could be evolved at an initial rate of 2.1 μmol/g per h under visible light irradiation. Furthermore, H2 could be obtained at an average rate of 1.21 μmol/g per h and O2 at an initial rate of 4.26 μmol/g per h under full arc irradiation. Based on these results, the band structure of the photocatalyst was suggested, indicating that the introduction of indium changed the electronic structure of the W-based oxide.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 1, 2005

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