Selenization governs the intrinsic activity of copper-cobalt complexes for enhanced non-radical Fenton-like oxidation toward organic contaminants

doi:10.1016/j.jhazmat.2022.128958

	Selenization governs the intrinsic activity of copper-cobalt complexes for enhanced non-radical Fenton-like oxidation toward organic contaminants
	Hong, Peidong 1,2; Zhang, Kaisheng 1; He, Junyong 1; Li, Yulian 1; Wu, Zijian 1; Xie, Chao 1; Liu, Jinhuai 1; Kong, Lingtao 1
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2022-08-05
卷号	435
关键词	CoCuSe Fenton-like Non-radical degradation Reaction mechanism CTC
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2022.128958
通讯作者	Kong, Lingtao(ltkong@iim.ac.cn)
英文摘要	Non-radical oxidation pathways in the Fenton-like process have a superior catalytic activity for the selective degradation of organic contaminants under complicated water matrices. Whereas the synthesis of high-performance catalysts and research on reaction mechanisms are unsatisfactory. Herein, it was the first report on copper-cobalt selenide (CuCoSe) that was well-prepared to activate hydrogen peroxide (H2O2) for non-radical species generation. The optimized CuCoSe+H2O2 system achieved excellent removal of chlortetracycline (CTC) in 10 min at neutral pH along with pleasing reusability and stability. Moreover, it exhibited great anti-interference capacity to inorganic anions and natural organic matters even in actual applications. Multisurveys verified that singlet oxygen (O-1(2)) was the dominant active species in this reaction and electron transfer on the surface-bound of CuCoSe and H2O2 likewise played an important role in direct CTC oxidation. Where the synergetic metals of Cu and Co accounted for the active sites, and the introduced Se atoms accelerated the circulation efficiency of Co3+/Co2+, Cu2+/Cu+ and Cu2+/Co2+. Simultaneously, the produced Se/O vacancies further facilitated electron mediation to enhance non-radical behaviors. With the aid of intermediate identification and theoretical calculation, the degradation pathways of CTC were proposed. And the predicted ecotoxicity indicated a decrease in underlying environmental risk.
资助项目	National Key Research Development Program of China[2019YFC0408500] ; Natural Science Foundation of China[21976182] ; Natural Science Foundation of Anhui Province[2008085MB48] ; CASHIPS Director's Fund[YZJJ2021QN23]
WOS关键词	DEGRADATION ; SELENIDE ; MICROSPHERES ; PERSULFATE ; IRON
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000847849600001
资助机构	National Key Research Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; CASHIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131836]
专题	中国科学院合肥物质科学研究院
通讯作者	Kong, Lingtao
作者单位	1.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Environm Mat & Pollut Control Lab, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Hong, Peidong,Zhang, Kaisheng,He, Junyong,et al. Selenization governs the intrinsic activity of copper-cobalt complexes for enhanced non-radical Fenton-like oxidation toward organic contaminants[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,435.
APA	Hong, Peidong.,Zhang, Kaisheng.,He, Junyong.,Li, Yulian.,Wu, Zijian.,...&Kong, Lingtao.(2022).Selenization governs the intrinsic activity of copper-cobalt complexes for enhanced non-radical Fenton-like oxidation toward organic contaminants.JOURNAL OF HAZARDOUS MATERIALS,435.
MLA	Hong, Peidong,et al."Selenization governs the intrinsic activity of copper-cobalt complexes for enhanced non-radical Fenton-like oxidation toward organic contaminants".JOURNAL OF HAZARDOUS MATERIALS 435(2022).