The dual effects of RGO films in TiO2/CdSe heterojunction: Enhancing photocatalytic activity and improving photocorrosion resistance

doi:10.1016/j.apsusc.2019.03.136

CORC > 金属研究所 > 中国科学院金属研究所

	The dual effects of RGO films in TiO2/CdSe heterojunction: Enhancing photocatalytic activity and improving photocorrosion resistance
	Shen, Qianqian 1,2; Wang, Yi 1,3; Xue, Jinbo 1,2; Gao, Guoxiang 1,2; Liu, Xuguang 1,3; Jia, Husheng 1,3; Li, Qi 4; Xu, Bingshe 1,2
刊名	APPLIED SURFACE SCIENCE
	2019-07-01
卷号	481 页码:1515-1523
关键词	TiO2/CdSe heterojunction Reduced graphene oxide films Photocorrosion resistance
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2019.03.136
通讯作者	Xue, Jinbo(xuejinbo@tyut.edu.cn) ; Jia, Husheng(jiahusheng@tyut.edu.cn)
英文摘要	Through TiO2/CdSe heterojunction has achieved outstanding performance in the field of photocatalysis, the serious photocorrosion of CdSe limits the service life of TiO2/CdSe heterojunction. Herein, we report a method to enhance both the photocatalytic activity and the photocorrosion resistance of TiO2/CdSe by spin coating reduced graphene oxide (RGO) films on TiO2/CdSe heterojunction films. RGO could work as photo-induced electron acceptor to improve the separation efficiency of photo-induced electron and hole pairs, thus enhancing the photocatalytic activity of TiO2/CdSe heterojunction. On the other hand, RGO could prevent the direct contact between CdSe nanoparticles and oxygen dissolved in solution, which would avoid the reaction between CdSe and oxygen to form soluble Cd2+ and SeO42- for the dissolution of CdSe nanoparticles during the photocatalytic reaction process. Thus, RGO film promotes the overall photocatalytic performance of TiO2/CdSe heterojunction and restrains secondary Cd2+ pollution occurred in its photocatalytic reaction. The dual merits of RGO film with enhanced photocatalytic activity and improved photocorrosion resistance are helpful not only for developing high performance TiO2/CdSe photocatalysts but also for other photocatalyst systems. This work sheds a light on loading RGO on a support aiming to significantly improve its photocatalytic performance and photocorrosion resistance in organic pollutants degradation.
资助项目	Natural Science Foundation of China[51402209] ; Natural Science Foundation of China[21276220] ; Natural Science Foundation of China[21878257] ; Natural Science Foundation of China[51672283] ; Natural Science Foundation of Shanxi Province[201603D121017] ; Natural Science Foundation of Shanxi Province[201601D102020] ; Natural Science Foundation of Shanxi Province[2015021075] ; Natural Science Foundation of Shanxi Province[201701D221083] ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi[2016124] ; Program for Science and Technology Development of Shanxi[20140321012-01] ; Shanxi Provincial Key Innovative Research Team in Science and Technology[201605D131045-10] ; Foundation of Taiyuan University of Technology[2015MS046] ; International cooperation Program of Shanxi province[201803D421079]
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000472176900177
资助机构	Natural Science Foundation of China ; Natural Science Foundation of Shanxi Province ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi ; Program for Science and Technology Development of Shanxi ; Shanxi Provincial Key Innovative Research Team in Science and Technology ; Foundation of Taiyuan University of Technology ; International cooperation Program of Shanxi province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134125]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xue, Jinbo; Jia, Husheng
作者单位	1.Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Shanxi, Peoples R China 2.Taiyuan Univ Technol, Res Ctr Adv Mat Sci & Technol, Taiyuan 030024, Shanxi, Peoples R China 3.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Shen, Qianqian,Wang, Yi,Xue, Jinbo,et al. The dual effects of RGO films in TiO2/CdSe heterojunction: Enhancing photocatalytic activity and improving photocorrosion resistance[J]. APPLIED SURFACE SCIENCE,2019,481:1515-1523.
APA	Shen, Qianqian.,Wang, Yi.,Xue, Jinbo.,Gao, Guoxiang.,Liu, Xuguang.,...&Xu, Bingshe.(2019).The dual effects of RGO films in TiO2/CdSe heterojunction: Enhancing photocatalytic activity and improving photocorrosion resistance.APPLIED SURFACE SCIENCE,481,1515-1523.
MLA	Shen, Qianqian,et al."The dual effects of RGO films in TiO2/CdSe heterojunction: Enhancing photocatalytic activity and improving photocorrosion resistance".APPLIED SURFACE SCIENCE 481(2019):1515-1523.