Photocatalytic activities of Ba2RBiO6 (R = La, Ce, Nd, Sm, Eu, Gd, Dy) under visible light irradiation

Takuya HATAKEYAMA; Shingo TAKEDA; Fumihiro ISHIKAWA; Ayako OHMURA; Atsuko NAKAYAMA; Yuh YAMADA; Akiyuki MATSUSHITA; Jinhua YEA

doi:10.2109/jcersj2.118.91

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Photocatalytic activities of Ba₂RBiO₆ (R = La, Ce, Nd, Sm, Eu, Gd, Dy) under visible light irradiation

Takuya HATAKEYAMA, Shingo TAKEDA, Fumihiro ISHIKAWA, Ayako OHMURA, Atsuko NAKAYAMA, Yuh YAMADA, Akiyuki MATSUSHITA, Jinhua YEA

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Keywords: Photocatalysis, Visible light, Rare earth, Band structure, BaBiO₃

JOURNAL FREE ACCESS

2010 Volume 118 Issue 1374 Pages 91-95

DOI https://doi.org/10.2109/jcersj2.118.91

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Abstract

We succeeded in synthesizing Ba₂RBiO₆ (R = La, Ce, Nd, Sm, Eu, Gd, and Dy) with a double-perovskite structure. Its photocatalytic activities were then investigated for a degradation of methylene blue (MB) solution and gaseous 2-propanol (IPA). High photocatalytic activities were observed under visible light irradiation and also a rare earth dependence of photocatalytic activities in the IPA degradation. We carried out first-principle calculations of the band structure based on the all-electron Full-potential Linear Augmented Plane-Wave (FLAPW) method and discuss the relationship between the high photocatalytic activities and the band structure in this paper.

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