The preparation and photocatalytic activity of SWNTs doped ZnO/TiO 2 compound films

doi:10.4028/www.scientific.net/AMR.97-101.1611

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	The preparation and photocatalytic activity of SWNTs doped ZnO/TiO 2 compound films
	Wang, Qing 1; Li, Xinli 2; Nie, Wei 2; Xia, Yongmei 2; Dai, Jianfeng 1
	2010
会议日期	December 26, 2009 - December 28, 2009
会议地点	Zhuhai, China
关键词	Absorption Azo dyes Carbon nanotubes Complexation Doping (additives) Gels Light absorption Photodegradation Scanning electron microscopy Single-walled carbon nanotubes (SWCN) Sol-gel process Sol-gels Sols Spin glass Ultraviolet spectroscopy X ray diffraction Blue shift Grain size Methyl Orange Photo catalytic degradation Photocatalytic activities SEM Sol-gel TiO Ultra-violet UV-VIS absorption spectra Wavelength regions ZnO/TiO
卷号	97-101
DOI	10.4028/www.scientific.net/AMR.97-101.1611
页码	1611-1615
英文摘要	The ZnO/TiO2 composite films were deposited over glass using spin coating technique by sol-gel process. Single-walled carbon nanotubes (SWNTs) were used to modify the ZnO/TiO2 films successfully in this paper. The structure and composition of the ZnO/TiO2 composite and SWNTs doped ZnO/TiO2 composite were characterized by X-ray diffraction (XRD). The morphology of samples was characterized by scanning electron microscopy (SEM). The photocatalytic activity was investigated by photocatalytic degradation of aqueous methyl orange under ultraviolet (UV) radiation. The UV-vis absorption spectra of the ZnO/TiO2 films and SWNTs doped ZnO/TiO2 films in the wavelength region 200∼800 nm were obtained. The results indicate that the SWNTs addition can decrease the grain size of ZnO/TiO2, which can enhance the photocatalytic activity. UV-vis absorption spectra of SWNTs-ZnO/TiO2 showed obvious blue shifts compared with ZnO/TiO2. The optimal amount of doping SWNTs is 1% according to this research. The enhanced mechanism of the SWNTs for the photocatalytic activity in ZnO/TiO2 films was analyzed in this article. © (2010) Trans Tech Publications.
会议录	Advanced Materials Research
会议录出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
语种	英语
ISSN号	10226680
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116888]
专题	省部共建有色金属先进加工与再利用国家重点实验室能源与动力工程学院理学院
作者单位	1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou, 730050, China; 2.Department of Applied Physics, Lanzhou University of Technology, Lanzhou, 730050, China
推荐引用方式 GB/T 7714	Wang, Qing,Li, Xinli,Nie, Wei,et al. The preparation and photocatalytic activity of SWNTs doped ZnO/TiO 2 compound films[C]. 见:. Zhuhai, China. December 26, 2009 - December 28, 2009.