S-Scheme Bi2S3/CdS Nanorod Heterojunction Photocatalysts with Improved Carrier Separation and Redox Capacity for Pollutant Removal

doi:10.1021/acsanm.2c00446

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	S-Scheme Bi2S3/CdS Nanorod Heterojunction Photocatalysts with Improved Carrier Separation and Redox Capacity for Pollutant Removal
	Zhang, Yiming 2,3; Jin, Zhouzheng 2; Liu, Dan 1,4; Tan, Zaitian 1; Mamba, Bhekie B.4; Kuvarega, Alex T.4; Gui, Jianzhou 1,2,4
刊名	ACS Applied Nano Materials
	2022-04-22
卷号	5 期号:4 页码:5448-5458
关键词	Bismuth compounds Charge transfer Chromium compounds Electric fields Heterojunctions II-VI semiconductors Layered semiconductors Nanorods Pollution Separation Bi2S3/CdS Carrier separation CdS nanorod CIP Cr(VI) Interfacial contact Photo-catalytic Photo-induced Pollutants removal Step scheme
DOI	10.1021/acsanm.2c00446
英文摘要	Constructing step scheme (S-scheme) heterojunctions makes it possible for promoting the separation and transfer of photoinduced carriers, as well as maintaining strong photoredox capacities. Herein, S-scheme Bi2S3/CdS heterojunctions were designed and constructed by the in situ substitution of Bi3+ on CdS nanorods. The S-scheme 10%-Bi2S3/CdS heterojunction with intense interfacial contacts shows not only an optimal photoreduction rate toward Cr(VI) (3.18 and 7 times that of pure CdS and Bi2S3, respectively) but also a high photodegradation rate of ciprofloxacin (1.94 and 8.75 times that of pure CdS and Bi2S3, respectively). Meanwhile, the S-scheme 10%-Bi2S3/CdS heterojunction could efficiently prevent itself from photoetching. It is confirmed that the S-scheme 10%-Bi2S3/CdS heterojunction is produced by a built-in electric field between CdS and Bi2S3, which not only improves the charge transfer and separation efficiencies but also maintains strong redox capacities. The present study will provide distinguished insight into fabricating an S-scheme heterojunction with strong photoredox capabilities for the removal of pollutants. © 2022 American Chemical Society.
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	American Chemical Society
WOS记录号	WOS:000813112400001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158506]
专题	兰州理工大学
作者单位	1.School of Chemistry and Chemical Engineering, Tiangong University, Tianjin; 300387, China; 2.State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, School of Material Science and Engineering, Tiangong University, Tianjin; 300387, China; 3.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 4.College of Science, Engineering and Technology, Nanotechnology and Water Sustainability Research Unit, University of South Africa, Florida Science Campus, Johannesburg; 1710, South Africa
推荐引用方式 GB/T 7714	Zhang, Yiming,Jin, Zhouzheng,Liu, Dan,et al. S-Scheme Bi2S3/CdS Nanorod Heterojunction Photocatalysts with Improved Carrier Separation and Redox Capacity for Pollutant Removal[J]. ACS Applied Nano Materials,2022,5(4):5448-5458.
APA	Zhang, Yiming.,Jin, Zhouzheng.,Liu, Dan.,Tan, Zaitian.,Mamba, Bhekie B..,...&Gui, Jianzhou.(2022).S-Scheme Bi2S3/CdS Nanorod Heterojunction Photocatalysts with Improved Carrier Separation and Redox Capacity for Pollutant Removal.ACS Applied Nano Materials,5(4),5448-5458.
MLA	Zhang, Yiming,et al."S-Scheme Bi2S3/CdS Nanorod Heterojunction Photocatalysts with Improved Carrier Separation and Redox Capacity for Pollutant Removal".ACS Applied Nano Materials 5.4(2022):5448-5458.