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Constructing electrostatic self-assembled ultrathin porous red 2D g-C3N4/Fe2N Schottky catalyst for high-efficiency tetracycline removal in photo-Fenton-like processes
Yang, Jian1; Liang, Yujun1; Yang, Gui1; Wang, Kun1; Zeng, Zikang1; Xiong, Zhuoran1; Han, Yongsheng2
2022-02-01
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume607Pages:1527-1539
AbstractThe traditional heterogeneous photo-Fenton reaction was mainly restricted by the fewer surface-active sites, low Fe3+/Fe2+ transformation and H2O2 activation efficiency of catalyst. This work designed and fabricated the efficient photo-Fenton Schottky catalysts via a facile electrostatic self-assembly of metallic Fe2N nanoparticles scattering on the surface of red g-C3N4 (ultrathin porous oxygen-doped 2D g-C3N4 nanosheets). The porous morphology and exceptional electrical structure of red g-C3N4 endowed more active sites and facilitated the photoexcited charge separation. Benefitting from the Schottky effect and unique dimensional coupling structure, the strong visible light absorption and fast spatial charge transfer were realized in the Schottky junction system. More strikingly, Fe2N as an efficient co-catalyst was in favor of the trap and export of e(-), leading to the Fe3+/Fe2+ transformation and H2O2 activation during the photo-Fenton process. Accordingly, the as-prepared catalysts revealed outstanding activity in photo-Fenton like degradation of tetracycline (TC) although under 5 W white LED light irradiation. Furthermore, the reasonable degradation pathway of TC and corresponding toxicity of the intermediates, as well as the photo-Fenton catalytic mechanism were interpreted and discussed in detail. This study would be a great aid in the development of various Schottky catalysts for heterogeneous photo-Fenton-based environmental remediation systems. (C) 2021 Elsevier Inc. All rights reserved.
KeywordRed g-C3N4 Fe2N Schottky junctions Photo-Fenton Tetracycline degradation
DOI10.1016/j.jcis.2021.09.112
Language英语
WOS KeywordPHOTOCATALYTIC HYDROGEN EVOLUTION ; CARBON NITRIDE NANOSHEETS ; Z-SCHEME PHOTOCATALYST ; H-2 EVOLUTION ; DOPED G-C3N4 ; OXIDATION PROCESSES ; ENHANCED FENTON ; CHARGE-TRANSFER ; OXYGEN ; REDUCTION
Funding ProjectState Key Laboratory of Multiphase Complex Systems[MPCS-2021-D-04] ; National Natural Science Foundation of China[21571162]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationState Key Laboratory of Multiphase Complex Systems ; National Natural Science Foundation of China
WOS IDWOS:000703525500006
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50349
Collection中国科学院过程工程研究所
Corresponding AuthorLiang, Yujun; Han, Yongsheng
Affiliation1.China Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Jian,Liang, Yujun,Yang, Gui,et al. Constructing electrostatic self-assembled ultrathin porous red 2D g-C3N4/Fe2N Schottky catalyst for high-efficiency tetracycline removal in photo-Fenton-like processes[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,607:1527-1539.
APA Yang, Jian.,Liang, Yujun.,Yang, Gui.,Wang, Kun.,Zeng, Zikang.,...&Han, Yongsheng.(2022).Constructing electrostatic self-assembled ultrathin porous red 2D g-C3N4/Fe2N Schottky catalyst for high-efficiency tetracycline removal in photo-Fenton-like processes.JOURNAL OF COLLOID AND INTERFACE SCIENCE,607,1527-1539.
MLA Yang, Jian,et al."Constructing electrostatic self-assembled ultrathin porous red 2D g-C3N4/Fe2N Schottky catalyst for high-efficiency tetracycline removal in photo-Fenton-like processes".JOURNAL OF COLLOID AND INTERFACE SCIENCE 607(2022):1527-1539.
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