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	Visible-light-driven NaTaO3-xNx catalyst prepared by a hydrothermal process
	Fu, Hongbo ; Zhang, Shicheng ; Zhang, Liwu ; Zhu, Yongfa
	2010-05-06 ; 2010-05-06
关键词	oxides chemical synthesis catalytic properties semiconductivity TANTALATE PHOTOCATALYSTS NANOSIZED BI2WO6 IRRADIATION O-2 H-2 DECOMPOSITION DEGRADATION POWDERS ENERGY TAON Materials Science, Multidisciplinary
中文摘要	NaTaO3-xNx catalyst has been successfully synthesized from N-doped Ta2O5 precursors by a simple hydrothermal process. The as-prepared samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and diffuse reflectance spectroscopy. Density functional theory calculations suggested that the valence band of the catalysts was composed of the hybrid O 2p and N 2p orbitals, and the visible-light sensitivity is due to the narrowing of the band gap by mixing N 2p and O 2p states. NaTaO3-xNx catalyst could decompose the gaseous formaldehyde under the visible-light irradiation (lambda > 400 mn), and its photocatalytic activity depended on N dopant concentration. NaTaO2.943N0.047 showed the highest photoactivity for the formaldehyde photodegradation. (C) 2007 Elsevier Ltd. All rights reserved.
语种	英语 ; 英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/12741]
专题	清华大学
推荐引用方式 GB/T 7714	Fu, Hongbo,Zhang, Shicheng,Zhang, Liwu,et al. Visible-light-driven NaTaO3-xNx catalyst prepared by a hydrothermal process[J],2010, 2010.
APA	Fu, Hongbo,Zhang, Shicheng,Zhang, Liwu,&Zhu, Yongfa.(2010).Visible-light-driven NaTaO3-xNx catalyst prepared by a hydrothermal process..
MLA	Fu, Hongbo,et al."Visible-light-driven NaTaO3-xNx catalyst prepared by a hydrothermal process".(2010).

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