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Optical and structural properties of solid oxide photocatalyst Bi2FeNbO7

Published online by Cambridge University Press:  31 January 2011

Zhigang Zou ,
Jinhua Ye  and
Hironori Arakawa
Zhigang Zou*
Affiliation:
National Institute of Materials and Chemical Research, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
Jinhua Ye
Affiliation:
National Research Institute for Metals, 1-2-1 Sengen, Tsukuba, Ibaraki 305, Japan
Hironori Arakawa
Affiliation:
National Institute of Materials and Chemical Research, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Polycrystalline sample of Bi2FeNbO7 was synthesized by the solid-state reaction and characterized by powder x-ray diffraction and Rietveld structure refinement. The optical absorption and structural properties of Bi2FeNbO7 were investigated. It was found that the Bi2FeNbO7 compound has the pyrochlore crystal structure, cubic system with space group Fd3m, and the lattice parameter is a = 10.5233(2) Å. Ultraviolet-visible diffuse reflectance spectroscopy measurement revealed that the band gap of Bi2FeNbO7 is about 2.1(6) eV.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 1 , January 2001 , pp. 35 - 37
Copyright
Copyright © Materials Research Society 2001

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