In-situ topotactic construction of novel rod-like Bi2S3 /Bi5O7I p-n heterojunctions with highly enhanced photocatalytic activities

doi:10.1016/j.jmst.2022.07.014

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	In-situ topotactic construction of novel rod-like Bi2S3 /Bi5O7I p-n heterojunctions with highly enhanced photocatalytic activities
	Ju, Peng 2; Hao, Lei 2; Zhang, Yu 1,2,3; Sun, Jianchao 4; Dou, Kunpeng 6; Lu, Zhaoxia 5; Liao, Dankui 5; Zhai, Xiaofan 1,3; Sun, Chengjun 2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2023-02-01
卷号	135 页码:126-141
关键词	Antifouling Bi5O7I Photocatalytic Heterostructure Bi2S3
ISSN号	1005-0302
DOI	10.1016/j.jmst.2022.07.014
通讯作者	Zhai, Xiaofan(zhaixf@qdio.ac.cn) ; Sun, Chengjun(csun@fio.org.cn)
英文摘要	In this work, a novel Bi2S3/Bi5O7I p-n heterojunction with three-dimensional rod-like nanostructure was successfully constructed through an in-situ topotactic ion exchange approach. A possible evolution mechanism from Bi5O7I nanobelts (NBs) into Bi2S3/Bi5O7I rod-like heterostructures (BSI RHs) was proposed, depicting the self-assembly process of internal Bi5O7I NBs and outside networks interwoven by Bi2S3 nanorods (NRs), which abided by the Ostwald ripening and epitaxial growth. Owing to the formation of p-n heterojunction and rich oxygen vacancies (OVs), the visible-light absorption ability and separation of photogenerated charge carriers of BSI RHs were highly promoted, leading to a greatly improved photocatalytic ability than that of Bi2S3 and Bi5O7I. BSI-1 exhibited the strongest photocatalytic perfor-mance, and almost all rhodamine B (RhB) and Pseudomonas aeruginosa ( P. aeruginosa) can be thoroughly removed within 90 min. Moreover, a possible photocatalytic mechanism of BSI RHs was proposed based on the tests of active species trapping, electron spin resonance (ESR), photoelectrochemistry (PEC), and photoluminescence (PL) combined with the density functional theory (DFT) simulated computation, validating the dominating roles of center dot O-2-( )and h(+) during the photocatalytic process. This work is expected to motivate further efforts for developing novel heterostructures with highly efficient photocatalytic performances, which presents a promising application prospect in the fields of energy and environment. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Basic Scientific Fund for National Public Research Institutes of China[2020S02] ; Basic Scientific Fund for National Public Research Institutes of China[2019Y03] ; Key Research and Development Program of Shandong Province (Major Scientific and Technological Innovation Project)[2019JZZY020711] ; Young Elite Scientists Sponsor- ship Program by CAST[YESS20210201] ; National Natural Science Foundation of China[51702328]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000864072300003
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180617]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Zhai, Xiaofan; Sun, Chengjun
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Minist Nat Resources, Inst Oceanog 1, Marine Bioresource & Environm Res Ctr, Key Lab Marine Ecoenvironm Sci & Technol, Qingdao 266061, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 4.Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China 5.Guangxi Univ, Coll Chem & Chem Engn, Guangxi Key Lab Petrochem Resources Proc & Proc En, Nanning 530004, Peoples R China 6.Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Ju, Peng,Hao, Lei,Zhang, Yu,et al. In-situ topotactic construction of novel rod-like Bi2S3 /Bi5O7I p-n heterojunctions with highly enhanced photocatalytic activities[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,135:126-141.
APA	Ju, Peng.,Hao, Lei.,Zhang, Yu.,Sun, Jianchao.,Dou, Kunpeng.,...&Sun, Chengjun.(2023).In-situ topotactic construction of novel rod-like Bi2S3 /Bi5O7I p-n heterojunctions with highly enhanced photocatalytic activities.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,135,126-141.
MLA	Ju, Peng,et al."In-situ topotactic construction of novel rod-like Bi2S3 /Bi5O7I p-n heterojunctions with highly enhanced photocatalytic activities".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 135(2023):126-141.