Effect of oxygen vacancy defect regeneration on photocatalytic properties of ZnO nanorods

doi:10.1007/s00339-020-04117-w

	Effect of oxygen vacancy defect regeneration on photocatalytic properties of ZnO nanorods
	Yu, Fucheng 2; Liu, Zhengyan 2; Li, Yuanmeng 2; Nan, Dongmei 2; Wang, Bolong 2; He, Ling 2; Zhang, Jianbin 2; Tang, Xianxi 2; Duan, Hongyan 2; Liu, Yangshuo 1
刊名	Applied Physics A: Materials Science and Processing
	2020-12-01
卷号	126 期号:12
关键词	Annealing Azo dyes Cyclic loads Defects II-VI semiconductors Nanorods Oxide minerals Oxygen Oxygen vacancies Photocatalytic activity Zinc oxide Atmosphere annealing Defect concentrations Effect of oxygen Methyl orange solution Oxygen deficits Photo catalytic degradation Photocatalytic performance Photocatalytic property
ISSN号	09478396
DOI	10.1007/s00339-020-04117-w
英文摘要	The effect of oxygen vacancy (VO) defect regeneration in ZnO nanorods on their photocatalytic properties has been investigated. The ZnO nanorods with different VO defect concentrations were realized by the annealing in the different atmospheres of vacuum, oxygen, air and Ar. And the VO defect concentrations in the annealed ZnO nanorods follow an order of Cvacuum > CAr > Cair > Coxygen. By the photocatalytic degradation test to methyl orange solution (MO), the photocatalytic performance of the samples is in accordance with the order of VO defect concentration in the samples, that is, the photocatalytic performance of ZnO nanorods increases with the increase of VO defect concentration, and the best performance is achieved in the sample annealed in the vacuum atmosphere due to the highest VO defect concentration. The regeneration ability of VO defects in ZnO nanorods was studied through the oxygen-deficit atmosphere annealing after each cyclic photocatalytic test. Although the photocatalytic performance of ZnO nanorods degrades slightly with the increase of cyclic test numbers, the VO defects regenerated sample still shows excellent photocatalytic performance after three cyclic tests. The results show that the VO defects in ZnO nanorods play a key role in improving the photocatalytic degradation performance, and the VO defects regenerated ZnO nanorods still show good photocatalytic degradation performance, indicating that ZnO can be reused as a photocatalyst by the VO defect regeneration. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	Springer Science and Business Media Deutschland GmbH
WOS记录号	WOS:000592386600001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150869]
专题	材料科学与工程学院机电工程学院土木工程学院
作者单位	1.Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing, Wuhan Textile University, Wuhan; 430073, China 2.School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Yu, Fucheng,Liu, Zhengyan,Li, Yuanmeng,et al. Effect of oxygen vacancy defect regeneration on photocatalytic properties of ZnO nanorods[J]. Applied Physics A: Materials Science and Processing,2020,126(12).
APA	Yu, Fucheng.,Liu, Zhengyan.,Li, Yuanmeng.,Nan, Dongmei.,Wang, Bolong.,...&Liu, Yangshuo.(2020).Effect of oxygen vacancy defect regeneration on photocatalytic properties of ZnO nanorods.Applied Physics A: Materials Science and Processing,126(12).
MLA	Yu, Fucheng,et al."Effect of oxygen vacancy defect regeneration on photocatalytic properties of ZnO nanorods".Applied Physics A: Materials Science and Processing 126.12(2020).