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Visible-light photo-Fenton catalytic MgFe2O4 spinel: Reaction sintering synthesis and DFT study
Zhang, Jiayu1,2; Yan, Mingwei1; Sun, Guangchao1,2; Li, Xiang1,2; Liu, Kaiqi1,2
2021-12-31
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume889Pages:11
AbstractMgFe2O4 spinel has attracted extensive attention as a photo-Fenton catalyst that can be used to degrade dyes in water under visible light. In this work, the MgFe2O4 spinel synthesized via reaction sintering was first used as a photo-Fenton catalyst to degrade Rhodamine B(RhB) under visible light. Furthermore, the influence of pH, MgFe2O4 spinel catalysts and H2O2 content on reaction activity was systematically investigated. The electronic structure of as-made MgFe2O4 spinel was explored by the DFT theoretical calculations, which revealed the composition of the valence band and conduction band. The prepared MgFe2O4 spinel was a mesoporous material with ferromagnetism, suitable band structure, and good visible light response. Various iron active sites on the MgFe2O4 surface interacted with H2O2 to produce a large amount of hydroxyl radical (center dot OH), which made the degradation efficiency of RhB reach up to 98.55% and the removal efficiency of TOC was 78.12%. After seven recycles, the efficiency was still above 94%. MgFe2O4 spinel was shown to be a simple-to-recycled, stable, and effective photo-Fenton catalyst with a potential practical application value. (C) 2021 Elsevier B.V. All rights reserved.
KeywordMgFe2O4 Reaction sintering Photo-Fenton DFT
DOI10.1016/j.jallcom.2021.161673
Language英语
WOS KeywordDOPED MAGNESIUM FERRITE ; METHYLENE-BLUE ; RHODAMINE-B ; PHOTOCATALYTIC DEGRADATION ; SAPROLITE LATERITE ; OXIDATION ; MINERALIZATION ; NANOCOMPOSITE ; NANOPARTICLES ; ANTIBIOTICS
Funding ProjectNational Natural Science Foundation of China[22005309] ; National Key R&D Program of China[2019YFC1904300] ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry[E0010717]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry
WOS IDWOS:000706790400003
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50584
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Kaiqi
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jiayu,Yan, Mingwei,Sun, Guangchao,et al. Visible-light photo-Fenton catalytic MgFe2O4 spinel: Reaction sintering synthesis and DFT study[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,889:11.
APA Zhang, Jiayu,Yan, Mingwei,Sun, Guangchao,Li, Xiang,&Liu, Kaiqi.(2021).Visible-light photo-Fenton catalytic MgFe2O4 spinel: Reaction sintering synthesis and DFT study.JOURNAL OF ALLOYS AND COMPOUNDS,889,11.
MLA Zhang, Jiayu,et al."Visible-light photo-Fenton catalytic MgFe2O4 spinel: Reaction sintering synthesis and DFT study".JOURNAL OF ALLOYS AND COMPOUNDS 889(2021):11.
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