Enhanced photocatalytic activity of bismuth-tungsten mixed oxides for oxidative decomposition of acetaldehyde under visible light irradiation

Amano, Fumiaki; Nogami, Kohei; Ohtani, Bunsho

Catalysis Communications, 2012, 20, 12-16

Permalink : https://hdl.handle.net/2115/49091

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アクセス権	open access
URI	https://hdl.handle.net/2115/49091
タイトル	Enhanced photocatalytic activity of bismuth-tungsten mixed oxides for oxidative decomposition of acetaldehyde under visible light irradiation
著者	Amano, Fumiaki ; Nogami, Kohei ; Ohtani, Bunsho
e-Rad_Researcher 10431347 著者名 Amano, Fumiaki
著者名 Nogami, Kohei
e-Rad_Researcher 80176924 著者名 Ohtani, Bunsho
言語	英語
キーワード	Photocatalysis
	Bi2WO6
	Aurivillius phase
	Nanoplate
	Visible light
発行日	2012-04-05
出版者	Elsevier B.V.
収録物名	Catalysis Communications
巻(号)	20
ページ	12-16
抄録	Russelite bismuth tungstate (Bi2WO6) flake-ball particles prepared by a hydrothermal reaction method have been reported to be visible-light-responsive photocatalysts for mineralization of organic compounds. Here, we report new bismuth-tungsten mixed oxide particles with a tungsten-to-bismuth ratio (W/Bi ratio) in feed of 1.0, which is two-times higher than the stoichiometric ratio of Bi2WO6 (W/Bi = 0.50). Compared to the conventional Bi2WO6 flake-ball particles, the tungsten-rich particles exhibited a narrow band gap (2.70 eV), large specific surface area due to the rectangular platelet nanostructure, and high level of photocatalytic activity for oxidative decomposition of acetaldehyde.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	1566-7367
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.catcom.2011.12.038