Hierarchical Co-Fe layered double hydroxides (LDH)/Ni foam composite as a recyclable peroxymonosulfate activator towards monomethylhydrazine degradation: Enhanced electron transfer and <sup>1</sup>O<inf>2</inf> dominated non-radical pathway

Qian, J; Ma, R; Chen, Z; Wang, G; Zhang, Y; Du, Y; Chen, Y; An, T; Ni, BJ

Hierarchical Co-Fe layered double hydroxides (LDH)/Ni foam composite as a recyclable peroxymonosulfate activator towards monomethylhydrazine degradation: Enhanced electron transfer and <sup>1</sup>O<inf>2</inf> dominated non-radical pathway

Qian, J Ma, R Chen, Z

Wang, G Zhang, Y Du, Y Chen, Y An, T Ni, BJ

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Publisher:: ELSEVIER SCIENCE SA
Publication Type:: Journal Article
Citation:: Chemical Engineering Journal, 2023, 469
Issue Date:: 2023-08-01

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Field	Value	Language
dc.contributor.author	Qian, J
dc.contributor.author	Ma, R
dc.contributor.author	Chen, Z https://orcid.org/0000-0003-0627-0856
dc.contributor.author	Wang, G
dc.contributor.author	Zhang, Y
dc.contributor.author	Du, Y
dc.contributor.author	Chen, Y
dc.contributor.author	An, T
dc.contributor.author	Ni, BJ
dc.date.accessioned	2024-04-11T07:36:02Z
dc.date.available	2024-04-11T07:36:02Z
dc.date.issued	2023-08-01
dc.identifier.citation	Chemical Engineering Journal, 2023, 469
dc.identifier.issn	1385-8947
dc.identifier.issn	1873-3212
dc.identifier.uri	http://hdl.handle.net/10453/177764
dc.description.abstract	The growing application of rocket propellants (e.g., monomethylhydrazine (MMH)) leads to awful water pollution, and thus it is urgent to develop efficient remediation methods to remove it from wastewater. Although persulfate-based catalytic technologies are promising for refractory organic compounds decomposition, the undesired aggregations, high cost and troublesome separation of powder catalysts still limit their wide-applications. To address these issues, we prepared Co-Fe layered double hydroxides (CoFe-LDH)/Ni foam (NF) composite as a recyclable peroxymonosulfate (PMS) activator to decontaminate MMH with high robustness to the high-strength co-existing pollutants within a wide pH range. The interfacial synergism between CoFe-LDH and NF could promote the charge transfer in the catalysis. DFT and XPS analysis elucidated the introduction of Ni and Co greatly facilitate charge transfer from LDH/NF to PMS. This work offers profound insights propellant-containing wastewater via non-radical (1O2 and electron transfer) pathway in the presence of PMS with reclamation of cost-effective heterogeneous catalysts.
dc.language	English
dc.publisher	ELSEVIER SCIENCE SA
dc.relation	http://purl.org/au-research/grants/arc/DP220101142
dc.relation	http://purl.org/au-research/grants/arc/DP220101139
dc.relation.ispartof	Chemical Engineering Journal
dc.relation.isbasedon	10.1016/j.cej.2023.143554
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	Hierarchical Co-Fe layered double hydroxides (LDH)/Ni foam composite as a recyclable peroxymonosulfate activator towards monomethylhydrazine degradation: Enhanced electron transfer and <sup>1</sup>O<inf>2</inf> dominated non-radical pathway
dc.type	Journal Article
utslib.citation.volume	469
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
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	2024-04-11T07:36:00Z
pubs.publication-status	Published
pubs.volume	469

Abstract:

The growing application of rocket propellants (e.g., monomethylhydrazine (MMH)) leads to awful water pollution, and thus it is urgent to develop efficient remediation methods to remove it from wastewater. Although persulfate-based catalytic technologies are promising for refractory organic compounds decomposition, the undesired aggregations, high cost and troublesome separation of powder catalysts still limit their wide-applications. To address these issues, we prepared Co-Fe layered double hydroxides (CoFe-LDH)/Ni foam (NF) composite as a recyclable peroxymonosulfate (PMS) activator to decontaminate MMH with high robustness to the high-strength co-existing pollutants within a wide pH range. The interfacial synergism between CoFe-LDH and NF could promote the charge transfer in the catalysis. DFT and XPS analysis elucidated the introduction of Ni and Co greatly facilitate charge transfer from LDH/NF to PMS. This work offers profound insights propellant-containing wastewater via non-radical (1O2 and electron transfer) pathway in the presence of PMS with reclamation of cost-effective heterogeneous catalysts.

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http://hdl.handle.net/10453/177764