Enhanced photocatalytic performance of nanosized coupled ZnO/SnO2 photocatalysts for methyl orange degradation

doi:10.1016/j.jphotochem.2004.05.014

CORC > 化学研究所 > 中国科学院化学研究所

	Enhanced photocatalytic performance of nanosized coupled ZnO/SnO2 photocatalysts for methyl orange degradation
	Cun, W ; Wang, XM ; Xu, BQ ; Zhao, JC ; Mai, BX ; Peng, P ; Sheng, GY ; Fu, HM
刊名	JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
	2004-11-01
卷号	168 期号:1-2 页码:47-52
关键词	Photocatalysis Zinc Oxide Tin Dioxide Nanomaterials Methyl Orange
ISSN号	1010-6030
DOI	10.1016/j.jphotochem.2004.05.014
英文摘要	Nanosized coupled ZnO/SnO2 photocatalysts with different Sn contents were prepared using the coprecipitation method, and characterized by X-ray diffraction, specific surface area and UV-Vis diffuse reflectance spectroscopy. The phases, mean grain sizes and band gap energy of the coupled ZnO/SnO2 photocatalysts varied with the Sn contents and the calcination temperatures. The photocatalytic activities of the coupled ZnO/SnO2 Photocatalysts, evaluated using the photodegradation of methyl orange as a probe reaction, were also found to be related to the calcination temperatures and the Sn contents. The photocatalytic activities of the coupled ZnO/SnO2 photocatalysts decreased with the increasing calcination temperatures. The maximum photocatalytic activity of the coupled ZnO/SnO2 photocatalyst, which is about 1.3 times the photocatalytic activity of ZnO and 21.3 times that of SnO2, was observed with a Sn content of 33.3 mol% under calcination at 500degreesC for 10 h. The enhancement of the photocatalytic activity might arise from the hetero-junctions ZnO/SnO2 in the coupled oxides. The photo-stability of the ZnO/SnO2 photocatalyst was also studied. (C) 2004 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000224440000007
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/81953]
专题	中国科学院化学研究所
通讯作者	Xu, BQ
作者单位	1.Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Cun, W,Wang, XM,Xu, BQ,et al. Enhanced photocatalytic performance of nanosized coupled ZnO/SnO2 photocatalysts for methyl orange degradation[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2004,168(1-2):47-52.
APA	Cun, W.,Wang, XM.,Xu, BQ.,Zhao, JC.,Mai, BX.,...&Fu, HM.(2004).Enhanced photocatalytic performance of nanosized coupled ZnO/SnO2 photocatalysts for methyl orange degradation.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,168(1-2),47-52.
MLA	Cun, W,et al."Enhanced photocatalytic performance of nanosized coupled ZnO/SnO2 photocatalysts for methyl orange degradation".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 168.1-2(2004):47-52.