A novel step-scheme BiVO4/Ag3VO4 photocatalyst for enhanced photocatalytic degradation activity under visible light irradiation

doi:10.1016/S1872-2067(20)63560-4

	A novel step-scheme BiVO4/Ag3VO4 photocatalyst for enhanced photocatalytic degradation activity under visible light irradiation
	Liu, Lizhong 1; Hu, Taiping 1; Dai, Kai 1; Zhang, Jinfeng 1; Liang, Changhao 2,3
刊名	CHINESE JOURNAL OF CATALYSIS
	2021
卷号	42
关键词	Step-scheme photocatalyst BiVO4 Ag3VO4 Photocatalytic activity Methylene blue
ISSN号	0253-9837
DOI	10.1016/S1872-2067(20)63560-4
通讯作者	Dai, Kai(daikai940@chnu.edu.cn) ; Zhang, Jinfeng(jfzhang@chnu.edu.cn) ; Liang, Changhao(chliang@issp.ac.cn)
英文摘要	Over the past few years, the emission of organic pollutants into the environment has increased tremendously. Therefore, various photocatalysts have been developed for the degradation of organic pollutants. In this study, a step-scheme BiVO4/Ag3VO4 composite was synthesized via a hydrothermal and chemical deposition process for the degradation of methylene blue. The composite showed strong redox ability under visible light. The 40%BiVO4/Ag3VO4 composite showed excellent photocatalytic degradation properties with a K-app of 0.05588 min(-1), which is 22.76 and 1.76 times higher than those of BiVO4 (0.00247 min(-1)) and Ag3VO4 (0.03167 min(-1)), respectively. The composite showed a stable performance and could retain 90% of its photocatalytic activity even after four cycles. The improved catalytic performance of the composite as compared to BiVO4 and Ag3VO4 can be attributed to its novel step-scheme mechanism, which facilitated the separation of the photogenerated charges and increased their lifetime. The photoluminescence measurement results and transient photocurrent response revealed that the composite showed efficient extraction of charge carriers. (C) 2021, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51572103] ; National Natural Science Foundation of China[51973078] ; Distinguished Young Scholar of Anhui Province[1808085J14] ; Key Foundation of Educational Commission of Anhui Province[KJ2019A0595]
WOS关键词	CARBON NITRIDE ; HETEROJUNCTION PHOTOCATALYSTS ; FACILE SYNTHESIS ; GRAPHENE OXIDE ; FABRICATION ; EFFICIENT ; PERFORMANCE ; COMPOSITE ; WATER ; TIO2
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000582725100006
资助机构	National Natural Science Foundation of China ; Distinguished Young Scholar of Anhui Province ; Key Foundation of Educational Commission of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104823]
专题	中国科学院合肥物质科学研究院
通讯作者	Dai, Kai; Zhang, Jinfeng; Liang, Changhao
作者单位	1.Huaibei Normal Univ, Coll Phys & Elect Informat, Key Lab Green & Precise Synthet Chem & Applicat, Minist Educ, Huaibei 235000, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Anhui Key Lab Nano Mat & Nanotechnol, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Liu, Lizhong,Hu, Taiping,Dai, Kai,et al. A novel step-scheme BiVO4/Ag3VO4 photocatalyst for enhanced photocatalytic degradation activity under visible light irradiation[J]. CHINESE JOURNAL OF CATALYSIS,2021,42.
APA	Liu, Lizhong,Hu, Taiping,Dai, Kai,Zhang, Jinfeng,&Liang, Changhao.(2021).A novel step-scheme BiVO4/Ag3VO4 photocatalyst for enhanced photocatalytic degradation activity under visible light irradiation.CHINESE JOURNAL OF CATALYSIS,42.
MLA	Liu, Lizhong,et al."A novel step-scheme BiVO4/Ag3VO4 photocatalyst for enhanced photocatalytic degradation activity under visible light irradiation".CHINESE JOURNAL OF CATALYSIS 42(2021).