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

doi:10.1016/j.cej.2023.146232

	Dual-path activation of peroxymonosulfate by S vacancies in Mo/Fe-S for antibacterial applications
	Wang, Jin1,2 ; Ren, Wenyu 1; Wang, Yi1,2 ; Zhang, Dun 1,2; Wang, Yu 3; Ju, Peng4 ; Dou, Kunpeng 5
	2023-11-01
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	475 页码:10
通讯作者	Wang, Yi(wangyi@qdio.ac.cn)
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.
关键词	Peroxymonosulfate Bimetallic sulfide S vacancy Advanced oxidation processes Antibacterial agent
DOI	10.1016/j.cej.2023.146232
收录类别	SCI
语种	英语
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研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001084299100001
出版者	ELSEVIER SCIENCE SA
WOS关键词	BISPHENOL-A ; DEGRADATION ; EVOLUTION ; ALKALINE ; BACTERIA ; MN
引用统计	被引频次：3[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/337002/181641
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Wang, Yi
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 3.Soochow Univ, Coll Pharmaceut Sci, Suzhou 215123, Peoples R China 4.Minist Nat Resources, Inst Oceanog 1, Marine Bioresource & Environm Res Ctr, Key Lab Marine Ecoenvironm Sci & Technol, Qingdao 266061, Peoples R China 5.Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266100, Peoples R China
第一作者单位	中国科学院海洋研究所
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	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.

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