Fabrication of wide-spectra-responsive NA/NH<inf>2</inf>-MIL-125(Ti) with boosted activity for Cr(VI) reduction and antibacterial effects

Fu, Y; Tan, M; Guo, Z; Hao, D; Xu, Y; Du, H; Zhang, C; Guo, J; Li, Q; Wang, Q

Fabrication of wide-spectra-responsive NA/NH<inf>2</inf>-MIL-125(Ti) with boosted activity for Cr(VI) reduction and antibacterial effects

Fu, Y Tan, M Guo, Z Hao, D Xu, Y Du, H Zhang, C Guo, J Li, Q Wang, Q

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Chemical Engineering Journal, 2023, 452, pp. 139417
Issue Date:: 2023-01-15

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Field	Value	Language
dc.contributor.author	Fu, Y
dc.contributor.author	Tan, M
dc.contributor.author	Guo, Z
dc.contributor.author	Hao, D
dc.contributor.author	Xu, Y
dc.contributor.author	Du, H
dc.contributor.author	Zhang, C
dc.contributor.author	Guo, J
dc.contributor.author	Li, Q
dc.contributor.author	Wang, Q
dc.date.accessioned	2024-04-27T20:25:00Z
dc.date.available	2024-04-27T20:25:00Z
dc.date.issued	2023-01-15
dc.identifier.citation	Chemical Engineering Journal, 2023, 452, pp. 139417
dc.identifier.issn	1385-8947
dc.identifier.uri	http://hdl.handle.net/10453/178414
dc.description.abstract	A NA/NH2-MIL-125(Ti) homojunction was prepared by grafting 1-naphthylamine (–NA, a chromophore group) on the –NH2 group in part of NH2-MIL-125(Ti). In-depth investigation of the optical and structural variations was carried out. The results indicated that the lattice structure of NH2-MIL-125(Ti) was well preserved after –NA modification. Whereas NA/NH2-MIL-125(Ti) with 10% –NA ratio exhibited optimal photocurrent response and the lowest charge separation efficiency. In photocatalytic activity experiments, NA/NH2-MIL-125(Ti) showed excellent activity with more than 99% Cr(VI) reduction and 99.999% bactericidal efficiency within 60-min irradiation. Furthermore, the photocatalysts showed good stability after 5 cyclic runs. Then, a mechanism about how the bacteria were killed was proposed, which was mainly contributed by the destruction of the cell membrane by photogenerated singlet oxygen (1O2). The results of this work will open a new route to the synthesis of MOFs for multiple photocatalytic applications.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Chemical Engineering Journal
dc.relation.isbasedon	10.1016/j.cej.2022.139417
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Chemical Engineering
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4011 Environmental engineering
dc.subject.classification	4016 Materials engineering
dc.title	Fabrication of wide-spectra-responsive NA/NH<inf>2</inf>-MIL-125(Ti) with boosted activity for Cr(VI) reduction and antibacterial effects
dc.type	Journal Article
utslib.citation.volume	452
utslib.for	0904 Chemical Engineering
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
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
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-27T20:24:54Z
pubs.publication-status	Published
pubs.volume	452

Abstract:

A NA/NH2-MIL-125(Ti) homojunction was prepared by grafting 1-naphthylamine (–NA, a chromophore group) on the –NH2 group in part of NH2-MIL-125(Ti). In-depth investigation of the optical and structural variations was carried out. The results indicated that the lattice structure of NH2-MIL-125(Ti) was well preserved after –NA modification. Whereas NA/NH2-MIL-125(Ti) with 10% –NA ratio exhibited optimal photocurrent response and the lowest charge separation efficiency. In photocatalytic activity experiments, NA/NH2-MIL-125(Ti) showed excellent activity with more than 99% Cr(VI) reduction and 99.999% bactericidal efficiency within 60-min irradiation. Furthermore, the photocatalysts showed good stability after 5 cyclic runs. Then, a mechanism about how the bacteria were killed was proposed, which was mainly contributed by the destruction of the cell membrane by photogenerated singlet oxygen (1O2). The results of this work will open a new route to the synthesis of MOFs for multiple photocatalytic applications.

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http://hdl.handle.net/10453/178414