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Novel Z-scheme MoS2/Bi2WO6 heterojunction with highly enhanced photocatalytic activity under visible light irradiation

文献类型：期刊论文

作者Zhang, Yu1; Ju, Peng1,2,3; Hao, Lei1,4; Zhai, Xiaofan2,6; Jiang, Fenghua1; Sun, Chengjun1,5
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2021-02-15
卷号854页码:14
关键词Z-scheme heterostructure MoS2 Bi2WO6 Photocatalysis Visible light
ISSN号0925-8388
DOI10.1016/j.jallcom.2020.157224
通讯作者Ju, Peng(jupeng@fio.org.cn) ; Sun, Chengjun(csun@fio.org.cn)
英文摘要In this study, novel Z-scheme MoS2/Bi2WO6 (MB) heterostructured hierarchical flower-like microspheres were successfully prepared via an in-situ growth method on exfoliated MoS2 nanosheets. Experimental results indicated that the content of MoS2 played a key role in controlling the morphology and photo catalytic activity of MB heterostructures. MB-9 exhibited a highly enhanced photocatalytic activity under visible light irradiation compared to pure MoS2, Bi2WO6 and other MB composites, which can be ascribed to the stable Z-scheme heterostructure, leading to the efficient transfer and the separation of photoinduced electrons and holes. The photocatalytic degradation efficiency of rhodamine B (RhB) can reach 100% within 90 min and almost all of Pseudomonas aeruginosa (P. aeruginosa) can be killed after 60 min by MB-9. In addition, MB-9 displayed a nice stability during the photocatalytic process, which favored a long-term use. Moreover, a possible photocatalytic mechanism was proposed based on the active species trapping experiments and electron spin resonance (ESR) tests, verifying that the photogenerated holes (h(+)) and center dot O-2(-) radicals were the dominating active species, which followed the Z-scheme reaction mechanism. It is hoped that this work can provide valuable information on developing novel Z-scheme heterostructures with enhanced photocatalytic activities for potential environmental purification and energy conversion. (C) 2020 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[51702328] ; National Natural Science Foundation of China[41706080] ; National Natural Science Foundation of China[41776177] ; Basic Scientific Fund for National Public Research Institutes of China[2019Y03] ; Basic Scientific Fund for National Public Research Institutes of China[2020S02] ; Shandong Provincial Natural Science Foundation[ZR2017BD002] ; Key Research and Development Program of Shandong Province (Major scientific and technological innovation project)[2019JZZY020711] ; China Postdoctoral Science Foundation[2017M622179] ; China Postdoctoral Science Foundation[2018T110681] ; CAS Light of West China Program ; Open Fund of Shandong Key Laboratory of Corrosion Science[KLCS201906]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000595168600008
出版者ELSEVIER SCIENCE SA
源URL[http://ir.qdio.ac.cn/handle/337002/169408]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Ju, Peng; Sun, Chengjun
作者单位1.Minist Nat Resources, Key Lab Marine Ecoenvironm Sci & Technol, Marine Bioresource & Environm Res Ctr, Inst Oceanog 1, 6 Xianxialing Rd, Qingdao 266061, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Shandong Key Lab Corros Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, 1 Wenhai Rd, Qingdao 266237, Peoples R China
4.Guangxi Univ, Coll Chem & Chem Engn, Guangxi Key Lab Petrochem Resources Proc & Proc E, Nanning 530004, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Drugs & Bioprod, 1 Wenhai Rd, Qingdao 266237, Peoples R China
6.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yu,Ju, Peng,Hao, Lei,et al. Novel Z-scheme MoS2/Bi2WO6 heterojunction with highly enhanced photocatalytic activity under visible light irradiation[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,854:14.
APA Zhang, Yu,Ju, Peng,Hao, Lei,Zhai, Xiaofan,Jiang, Fenghua,&Sun, Chengjun.(2021).Novel Z-scheme MoS2/Bi2WO6 heterojunction with highly enhanced photocatalytic activity under visible light irradiation.JOURNAL OF ALLOYS AND COMPOUNDS,854,14.
MLA Zhang, Yu,et al."Novel Z-scheme MoS2/Bi2WO6 heterojunction with highly enhanced photocatalytic activity under visible light irradiation".JOURNAL OF ALLOYS AND COMPOUNDS 854(2021):14.

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来源：海洋研究所

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