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Directional electron transfer in single-atom cobalt nanozyme for enhanced photo-Fenton-like reaction
Liu,Shiang1; Hu,Yuwen1; Xu,Haojie1; Lou,Zhangrong2; Chen,Jianrong1; Yuan,Cheng Zong3; Lv,Xingshuai3; Duan,Xiaoguang4; Wang,Shaobin4; Wu,Xi Lin1,4
2023-05-13
Source PublicationApplied Catalysis B: Environmental
ISSN0926-3373
Volume335Pages:122882
Abstract

In this study, enzyme-mimicking single-atom (EMSA) catalyst was fabricated by implanting cobalamin cofactor-resembling Co-N sites into graphite carbon nitride (g-CN). The EMSA-Co sites inherit the high catalytic activity and selectivity from natural enzymes and demonstrate outstanding performance for persulfate (PS) activation under visible light (Vis). The kinetic rate constant for BPA degradation in the EMSA-Co-g-CN +PS+Vis system was about 33 times faster than that in the g-CN+PS+Vis system. The benefits of high reactivity and selectivity of the EMSA-Co sites led to efficient generation of the radical species (SO, •OH and O), resulting in the fast elimination of various organic pollutants. Mechanisms studies reveal that the directional ultrafast electron transfer in the EMSA-Co nanozyme leads to an accelerated redox circulation of the Co single sites, thereby boosting their performance for photo-Fenton-like reaction. This study opens up the avenue of robust and efficient enzyme-like SACs for applications in environmental remediation.

KeywordNanozyme Persulfate Photo-fenton-like Reaction Single-atom Catalysis Synergistic Effects
DOI10.1016/j.apcatb.2023.122882
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS IDWOS:001053120000001
PublisherELSEVIER, RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
Scopus ID2-s2.0-85159200596
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Co-First AuthorLiu,Shiang
Corresponding AuthorLou,Zhangrong; Lv,Xingshuai; Wu,Xi Lin
Affiliation1.College of Geography and Environmental Science,Zhejiang Normal University,Jinhua,321004,China
2.Faculty of Medicine,Dalian University of Technology,Dalian,116024,China
3.Institute of Applied Physics and Materials Engineering,University of Macau,Macao,China
4.School of Chemical Engineering and Advanced Materials,The University of Adelaide,Adelaide,5005,Australia
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Liu,Shiang,Hu,Yuwen,Xu,Haojie,et al. Directional electron transfer in single-atom cobalt nanozyme for enhanced photo-Fenton-like reaction[J]. Applied Catalysis B: Environmental, 2023, 335, 122882.
APA Liu,Shiang., Hu,Yuwen., Xu,Haojie., Lou,Zhangrong., Chen,Jianrong., Yuan,Cheng Zong., Lv,Xingshuai., Duan,Xiaoguang., Wang,Shaobin., & Wu,Xi Lin (2023). Directional electron transfer in single-atom cobalt nanozyme for enhanced photo-Fenton-like reaction. Applied Catalysis B: Environmental, 335, 122882.
MLA Liu,Shiang,et al."Directional electron transfer in single-atom cobalt nanozyme for enhanced photo-Fenton-like reaction".Applied Catalysis B: Environmental 335(2023):122882.
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