Fabrication of CN75/NH<inf>2</inf>-MIL-53(Fe) p-n heterojunction with wide spectral response for efficiently photocatalytic Cr(VI) reduction

Zhang, K; Fu, Y; Hao, D; Guo, J; Ni, BJ; Jiang, B; Xu, L; Wang, Q

Fabrication of CN75/NH<inf>2</inf>-MIL-53(Fe) p-n heterojunction with wide spectral response for efficiently photocatalytic Cr(VI) reduction

Zhang, K Fu, Y Hao, D Guo, J Ni, BJ Jiang, B Xu, L Wang, Q

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Publisher:: ELSEVIER SCIENCE SA
Publication Type:: Journal Article
Citation:: Journal of Alloys and Compounds, 2022, 891
Issue Date:: 2022-01-25

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Field	Value	Language
dc.contributor.author	Zhang, K
dc.contributor.author	Fu, Y
dc.contributor.author	Hao, D
dc.contributor.author	Guo, J
dc.contributor.author	Ni, BJ
dc.contributor.author	Jiang, B
dc.contributor.author	Xu, L
dc.contributor.author	Wang, Q
dc.date.accessioned	2023-03-23T22:21:38Z
dc.date.available	2023-03-23T22:21:38Z
dc.date.issued	2022-01-25
dc.identifier.citation	Journal of Alloys and Compounds, 2022, 891
dc.identifier.issn	0925-8388
dc.identifier.issn	1873-4669
dc.identifier.uri	http://hdl.handle.net/10453/168250
dc.description.abstract	In this study, p-type carbon nitride (CN75) nanoparticles were introduced to precursors of NH2-MIL-53(Fe). A CN75 and NH2-MIL-53(Fe) p-n heterojunction was formed by solvothermal reaction. It showed that tiny loading of CN75 onto NH2-MIL-53(Fe) would boost the separation, migration and transfer of photo-induced carriers effectively. Meanwhile, its spectral response was broadened, which draw in efficient photocatalytic performance together. As for photocatalytic reduction of Cr(VI), the rate constant on CN75/NH2-MIL-53(Fe) was ca 1.8 and 25.3 times that by NH2-MIL-53(Fe) and CN75 under visible light (λ ≥ 420 nm), respectively. Reduction rate of CN75/NH2-MIL-53(Fe) (0.1 g/L) reached about 100% within 15 min at pH 2. Good activity could also be observed even under red light (λ: 650–660 nm). Besides, CN75/NH2-MIL-53(Fe) exhibited high stability after 5 cyclic runs, and the leaching of Fe3+ can be greatly suppressed after loading CN75. Structural analysis proved that the MOFs framework was well maintained. Thus, this research paper would provide useful information about the construction and synthesis of efficient and steady Fe-MOFs based photocatalyst for environmental remediation.
dc.language	English
dc.publisher	ELSEVIER SCIENCE SA
dc.relation.ispartof	Journal of Alloys and Compounds
dc.relation.isbasedon	10.1016/j.jallcom.2021.161994
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0204 Condensed Matter Physics, 0912 Materials Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Materials
dc.title	Fabrication of CN75/NH<inf>2</inf>-MIL-53(Fe) p-n heterojunction with wide spectral response for efficiently photocatalytic Cr(VI) reduction
dc.type	Journal Article
utslib.citation.volume	891
utslib.for	0204 Condensed Matter Physics
utslib.for	0912 Materials Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-23T22:21:36Z
pubs.publication-status	Published
pubs.volume	891

Abstract:

In this study, p-type carbon nitride (CN75) nanoparticles were introduced to precursors of NH2-MIL-53(Fe). A CN75 and NH2-MIL-53(Fe) p-n heterojunction was formed by solvothermal reaction. It showed that tiny loading of CN75 onto NH2-MIL-53(Fe) would boost the separation, migration and transfer of photo-induced carriers effectively. Meanwhile, its spectral response was broadened, which draw in efficient photocatalytic performance together. As for photocatalytic reduction of Cr(VI), the rate constant on CN75/NH2-MIL-53(Fe) was ca 1.8 and 25.3 times that by NH2-MIL-53(Fe) and CN75 under visible light (λ ≥ 420 nm), respectively. Reduction rate of CN75/NH2-MIL-53(Fe) (0.1 g/L) reached about 100% within 15 min at pH 2. Good activity could also be observed even under red light (λ: 650–660 nm). Besides, CN75/NH2-MIL-53(Fe) exhibited high stability after 5 cyclic runs, and the leaching of Fe3+ can be greatly suppressed after loading CN75. Structural analysis proved that the MOFs framework was well maintained. Thus, this research paper would provide useful information about the construction and synthesis of efficient and steady Fe-MOFs based photocatalyst for environmental remediation.

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http://hdl.handle.net/10453/168250