Facile fabrication of a novel spindlelike MoS2/BiVO4 Z-scheme heterostructure with superior visible-light-driven photocatalytic disinfection performance

doi:10.1016/j.seppur.2022.121706

	Facile fabrication of a novel spindlelike MoS2/BiVO4 Z-scheme heterostructure with superior visible-light-driven photocatalytic disinfection performance
	Ju, Peng1 ; Hao, Lei 1,6; Zhang, Yu1,2,4 ; Sun, Jianchao 3; Dou, Kunpeng 7; Lu, Zhaoxia 6; Liao, Dankui 6; Zhai, Xiaofan2,4,5 ; Sun, Chengjun 1
	2022-10-15
发表期刊	SEPARATION AND PURIFICATION TECHNOLOGY
ISSN	1383-5866
卷号	299 页码:17
通讯作者	Sun, Jianchao(jianchaoabc@163.com) ; Zhai, Xiaofan(zhaixf@qdio.ac.cn) ; Sun, Chengjun(csun@fio.org.cn)
摘要	Novel MoS2/BiVO4 porous spindlelike heterostructures (MBV SHs) were successfully constructed via a facile insitu hydrothermal approach, which were consisted of spindles with hierarchical squamous nanosheets (NSs) covering throughout the surface. A possible formation mechanism of MBV SHs was studied and proposed, illustrating an in-situ growth of BiVO4 crystals on MoS2 NSs followed by a self-assembly process through Ostwald ripening and anisotropic growth with the assistance of polyvinylpyrrolidone (PVP). The photocatalytic activities of the obtained samples were systematically studied by the inactivation of Pseudomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S. aureus) under visible light irradiation. Results indicated that MBV SHs displayed a greatly improved photocatalytic antibacterial performance compared with pure BiVO4 and MoS2, among which MBV-4 can kill almost all bacteria within 90 min. The enhanced photocatalytic property can be ascribed to the formation of Z-scheme heterojunction and rich oxygen vacancies (OVs) in MBV SHs, leading to the stronger photoabsorption ability, faster separation of photoinduced charge carriers, and more robust redox capacity. Moreover, the photocatalytic mechanism of Z-scheme heterojunction was investigated in detail according to the radicals capture and electron spin resonance (ESR) tests combined with the first-principle theoretical calculation, verifying that center dot O-2(-) and h(+) played significant roles in the photocatalytic process. This study provides a novel Z-scheme heterojunction with prospective application possibility in environmental purification.
关键词	BiVO4 MoS2 Z-scheme heterojunction Photocatalysis Disinfection
DOI	10.1016/j.seppur.2022.121706
收录类别	SCI
语种	英语
资助项目	Basic Scientific Fund for National Public Research Institutes of China[2019Y03] ; Basic Scientific Fund for National Public Research Institutes of China[2020S02] ; Young Elite Scientists Sponsorship Program[CASTYESS20210201] ; Key Research and Development Program of Shandong Province (Major Scientific and Technological Innovation Project)[2019JZZY020711] ; National Natural Science Foundation of China[51702328] ; Hainan Province Science and Technology Special Fund[ZDYF2021GXJS210]
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:000861645900001
出版者	ELSEVIER
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/180667
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Sun, Jianchao; Zhai, Xiaofan; Sun, Chengjun
作者单位	1.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Ecoenvironm Sci & Technol, Marine Bioresource & Environm Res Ctr, 6 Xianxialing Rd, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 3.Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 5.Chinese Acad Sci, Sanya Inst Oceanol, South China Sea Inst Oceanol, Sanya 572000, Peoples R China 6.Guangxi Univ, Coll Chem & Chem Engn, Guangxi Key Lab Petrochem Resources Proc & Proc E, Nanning 530004, Peoples R China 7.Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266100, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Ju, Peng,Hao, Lei,Zhang, Yu,et al. Facile fabrication of a novel spindlelike MoS2/BiVO4 Z-scheme heterostructure with superior visible-light-driven photocatalytic disinfection performance[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,299:17.
APA	Ju, Peng.,Hao, Lei.,Zhang, Yu.,Sun, Jianchao.,Dou, Kunpeng.,...&Sun, Chengjun.(2022).Facile fabrication of a novel spindlelike MoS2/BiVO4 Z-scheme heterostructure with superior visible-light-driven photocatalytic disinfection performance.SEPARATION AND PURIFICATION TECHNOLOGY,299,17.
MLA	Ju, Peng,et al."Facile fabrication of a novel spindlelike MoS2/BiVO4 Z-scheme heterostructure with superior visible-light-driven photocatalytic disinfection performance".SEPARATION AND PURIFICATION TECHNOLOGY 299(2022):17.

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