南方科技大学知识苑(SUSTech KC): Photo-assisted reductive cleavage and catalytic hydrolysis-mediated persulfate activation by mixed redox-couple-involved CuFeS2 for efficient trichloroethylene oxidation in groundwater

Title	Photo-assisted reductive cleavage and catalytic hydrolysis-mediated persulfate activation by mixed redox-couple-involved CuFeS2 for efficient trichloroethylene oxidation in groundwater
Author	Huang，Junyi1,2 ; Zhou，Yuanhao 2; Deng，Shimao2 ; Shangguan，Yangzi2 ; Wang，Ranhao2 ; Ge，Qiuyue 2; Feng，Xuezhen2 ; Yang，Zhigang2 ; Ji，Yongfei 3; Fan，Ting 4; Chen，Baiyang 5; Li，Boqiang 5; Zheng，Chunmiao2 ; Hu，Xijun 6; Chen，Hong2 ; Huang，Junyi7,8 ; Zhou，Yuanhao 8; Deng，Shimao8 ; Shangguan，Yangzi8 ; Wang，Ranhao8 ; Ge，Qiuyue 8; Feng，Xuezhen8 ; Yang，Zhigang8 ; Ji，Yongfei 9; Fan，Ting 10; Chen，Baiyang 11; Li，Boqiang 11; Zheng，Chunmiao8 ; Hu，Xijun 12; Chen，Hong8
Corresponding Author	Hu，Xijun; Hu，Xijun
Publication Years	2022-08-15
DOI	10.1016/j.watres.2022.118885
Source Title	WATER RESEARCH Impact Factor & Quartile
ISSN	0043-1354
EISSN	1879-2448
Volume	222
Abstract	Persulfate (PS, SO) activation through transition metal sulfides (TMS) has gained increasing attention since it can decompose a wide variety of refractory halogenated organic compounds in groundwater and wastewater. However, the processes of PS activation by TMS and particularly the formation of •OH radical under anoxic and acidic conditions (pH ∼2.8) remain elusive. Herein, by employing mixed redox-couple-involved chalcopyrite (CuFeS) (150 mg/L) nanoparticles for PS (3.0 mM) activation, 96% of trichloroethylene was degraded within 120 min at pH 6.8 under visible light irradiation. The combination of experimental studies and theoretical calculations suggested that the Cu(I)/Fe(III) mixed redox-couple in CuFeS plays a crucial role to activate PS. Cu(I) acted as an electron donor to transfer electron to Fe(III), then Fe(III) served as an electron transfer bridge as well as a catalytic center to further donate this received electron to the O–O bond of PS, thus yielding SO for trichloroethylene oxidation. Moreover, for the first time, •OH radicals were found to form from the catalytic hydrolysis of PS onto CuFeS surface, where SO anion was hydrolyzed to yield HO and these ensuing HO were further transformed into •OH radicals via photoelectron-assisted O–O bond cleavage step. Our findings offer valuable insights for understanding the mechanisms of PS activation by redox-couple- involved TMS, which could promote the design of effective activators toward PS decomposition for environmental remediation.
Keywords	Advanced Oxidation Process Chlorinated Organic Contaminants CuFeS2 Activator Groundwater Remediation Hydroxyl Radical Persulfate
URL	[Source Record]
Indexed By	SCI ; EI
Language	English
Important Publications	NI Journal Papers
SUSTech Authorship	Others
Funding Project	Basic and Applied Basic Research Foundation of Guangdong Province[2020A1515110723] ; National Natural Science Foundation of China[21777045]
EI Accession Number	20223212544492
EI Keywords	Anesthetics ; Catalytic Oxidation ; Chemical Activation ; Copper Compounds ; Electrons ; Free Radical Reactions ; Free Radicals ; Groundwater ; Groundwater Pollution ; Hydrolysis ; Iron Compounds ; Transition Metals ; Trichloroethylene
ESI Classification Code	Groundwater:444.2 ; Air Pollution Control:451.2 ; Water Pollution Sources:453.1 ; Metallurgy And Metallography:531 ; Chemical Reactions:802.2 ; Chemical Agents And Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1
ESI Research Field	ENVIRONMENT/ECOLOGY
Scopus EID	2-s2.0-85135411825
Data Source	Scopus
Citation statistics	Cited Times [WOS]:3
Document Type	Journal Article
Identifier	http://kc.sustech.edu.cn/handle/2SGJ60CL/375627
Department	School of Environmental Science and Engineering
Affiliation	1.Department of Civil and Environmental Engineering,The Hong Kong University of Science and Technology,Hong Kong,China 2.Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials,State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China 3.School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou,510006,China 4.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou,510641,China 5.State Key Laboratory of Urban Water Resource and Environment,Shenzhen Key Laboratory of Organic Pollution Prevention and Control,Harbin Institute of Technology,Shenzhen,518055,China 6.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Hong Kong,China 7.Department of Civil and Environmental Engineering,The Hong Kong University of Science and Technology,Hong Kong,China 8.Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials,State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China 9.School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou,510006,China 10.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou,510641,China 11.State Key Laboratory of Urban Water Resource and Environment,Shenzhen Key Laboratory of Organic Pollution Prevention and Control,Harbin Institute of Technology,Shenzhen,518055,China 12.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Hong Kong,China
First Author Affilication	School of Environmental Science and Engineering
Recommended Citation GB/T 7714	Huang，Junyi,Zhou，Yuanhao,Deng，Shimao,et al. Photo-assisted reductive cleavage and catalytic hydrolysis-mediated persulfate activation by mixed redox-couple-involved CuFeS2 for efficient trichloroethylene oxidation in groundwater[J]. WATER RESEARCH,2022,222.
APA	Huang，Junyi.,Zhou，Yuanhao.,Deng，Shimao.,Shangguan，Yangzi.,Wang，Ranhao.,...&Chen，Hong.(2022).Photo-assisted reductive cleavage and catalytic hydrolysis-mediated persulfate activation by mixed redox-couple-involved CuFeS2 for efficient trichloroethylene oxidation in groundwater.WATER RESEARCH,222.
MLA	Huang，Junyi,et al."Photo-assisted reductive cleavage and catalytic hydrolysis-mediated persulfate activation by mixed redox-couple-involved CuFeS2 for efficient trichloroethylene oxidation in groundwater".WATER RESEARCH 222(2022).

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