Dual-path activation of peroxymonosulfate by S vacancies in Mo/Fe-S for antibacterial applications

doi:10.1016/j.cej.2023.146232

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	Dual-path activation of peroxymonosulfate by S vacancies in Mo/Fe-S for antibacterial applications
	Wang, Jin 4,5; Ren, Wenyu 5; Wang, Yi 4,5; Zhang, Dun 4,5; Wang, Yu 3; Ju, Peng 2; Dou, Kunpeng 1
刊名	CHEMICAL ENGINEERING JOURNAL
	2023-11-01
卷号	475 页码:10
关键词	Peroxymonosulfate Bimetallic sulfide S vacancy Advanced oxidation processes Antibacterial agent
ISSN号	1385-8947
DOI	10.1016/j.cej.2023.146232
通讯作者	Wang, Yi(wangyi@qdio.ac.cn)
英文摘要	Heterogeneous catalysts that activate peroxymonosulfate (PMS) are highly desirable in advanced oxidation process. In this study, Mo/Fe-S was synthesized from Mo/Fe-metal organic framework and used as PMS activator to inhibit bacterial growth and microbial attachment. The Mo/Fe-S material, prepared with a molar ratio of Mo: Fe = 1:1 (short for Mo/Fe-S), exhibited the highest number of S vacancies (SVs) and exposed the most active sites of Mo and Fe, which were responsible for the decomposition of PMS. Confirmed by systematic characterizations and theoretical calculations, SVs in Mo/Fe-S have strong adsorption energy for PMS. SO4 center dot  and center dot OH are capable of damaging sulfate-reducing bacteria and Pseudomonas aeruginosa. At the metal sites, active species are produced through dual pathways involving the transfer of electrons in Fe(II)/Fe(III) and Mo(III)/Mo(IV). The interfacial reaction mechanism was investigated through in situ tests, and a mechanistic proposal based on vacancy catalysis and bimetallic active sites was introduced. This study provides new insights on polymetallic sulfides assisted with SVs in PMS activation for advanced oxidation processes.
资助项目	Natured Science Foundation of China[41976032] ; Natured Science Foundation of China[42176047] ; Second Batch of Postdoctoral Funding in Qingdao ; Chinese Academy of Science ; China Postdoctoral Science Foundation
WOS关键词	BISPHENOL-A ; DEGRADATION ; EVOLUTION ; ALKALINE ; BACTERIA ; MN
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:001084299100001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/181640]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Wang, Yi
作者单位	1.Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266100, 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.Soochow Univ, Coll Pharmaceut Sci, Suzhou 215123, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jin,Ren, Wenyu,Wang, Yi,et al. Dual-path activation of peroxymonosulfate by S vacancies in Mo/Fe-S for antibacterial applications[J]. CHEMICAL ENGINEERING JOURNAL,2023,475:10.
APA	Wang, Jin.,Ren, Wenyu.,Wang, Yi.,Zhang, Dun.,Wang, Yu.,...&Dou, Kunpeng.(2023).Dual-path activation of peroxymonosulfate by S vacancies in Mo/Fe-S for antibacterial applications.CHEMICAL ENGINEERING JOURNAL,475,10.
MLA	Wang, Jin,et al."Dual-path activation of peroxymonosulfate by S vacancies in Mo/Fe-S for antibacterial applications".CHEMICAL ENGINEERING JOURNAL 475(2023):10.