Effective fluorine removal using mixed matrix membrane based on polysulfone: adsorption performance and diffusion behavior.

Zhang, X; Sui, G; Wang, Z; Ngo, HH; Guo, W; Wen, H; Zhang, D; Wang, X; Zhang, J

Effective fluorine removal using mixed matrix membrane based on polysulfone: adsorption performance and diffusion behavior.

Zhang, X Sui, G Wang, Z Ngo, HH Guo, W

Wen, H Zhang, D Wang, X Zhang, J

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Publisher:: IWA PUBLISHING
Publication Type:: Journal Article
Citation:: Water Sci Technol, 2022, 85, (11), pp. 3196-3207
Issue Date:: 2022-06

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Field	Value	Language
dc.contributor.author	Zhang, X
dc.contributor.author	Sui, G
dc.contributor.author	Wang, Z
dc.contributor.author	Ngo, HH
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.contributor.author	Wen, H
dc.contributor.author	Zhang, D
dc.contributor.author	Wang, X
dc.contributor.author	Zhang, J
dc.date.accessioned	2023-01-26T06:17:39Z
dc.date.available	2023-01-26T06:17:39Z
dc.date.issued	2022-06
dc.identifier.citation	Water Sci Technol, 2022, 85, (11), pp. 3196-3207
dc.identifier.issn	0273-1223
dc.identifier.issn	1996-9732
dc.identifier.uri	http://hdl.handle.net/10453/165476
dc.description.abstract	Fluorine is one of the essential trace elements for human life activities, but excessive intake of fluoride poses a great risk to people's health. In this paper, a series of mixed matrix membrane (MMM)-based polysulfone for removing fluoride were prepared by phase inversion, and their properties, adsorption capacity, adsorption isotherms, adsorption kinetics of fluoride ions, and mechanism were all investigated. The results confirmed that the MMM contained a large number of hydroxyl and aluminum functional groups due to resin being added. The MMM exhibited the best fluorine ion adsorption capacity of 2.502 mg/g at a pH of 6 with the initial concentration of 6 mg/L. As well, adsorption kinetics of fluorine ion on MMM followed the pseudo-second-order model, while the adsorption behavior of fluorine ion on MMM was well simulated by the Langmuir isotherm model. The adsorption capacity of MMM remained stable after six cycles and the regeneration efficiency was still above 80%, resulting in a long-term stability adequate for fluorine ion removal. Complexation and ion exchange played a key role in the fluorine ion adsorption of MMM. These results indicated the MMM as novel type of absorbent had an excellent capacity for removing fluoride.
dc.format	Print
dc.language	eng
dc.publisher	IWA PUBLISHING
dc.relation.ispartof	Water Sci Technol
dc.relation.isbasedon	10.2166/wst.2022.170
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Environmental Engineering
dc.subject.mesh	Adsorption
dc.subject.mesh	Fluorides
dc.subject.mesh	Fluorine
dc.subject.mesh	Humans
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Kinetics
dc.subject.mesh	Polymers
dc.subject.mesh	Sulfones
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Humans
dc.subject.mesh	Fluorides
dc.subject.mesh	Fluorine
dc.subject.mesh	Sulfones
dc.subject.mesh	Polymers
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Kinetics
dc.subject.mesh	Adsorption
dc.subject.mesh	Hydrogen-Ion Concentration
dc.title	Effective fluorine removal using mixed matrix membrane based on polysulfone: adsorption performance and diffusion behavior.
dc.type	Journal Article
utslib.citation.volume	85
utslib.location.activity	England
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	open_access	*
dc.date.updated	2023-01-26T06:17:37Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	85
utslib.citation.issue	11

Abstract:

Fluorine is one of the essential trace elements for human life activities, but excessive intake of fluoride poses a great risk to people's health. In this paper, a series of mixed matrix membrane (MMM)-based polysulfone for removing fluoride were prepared by phase inversion, and their properties, adsorption capacity, adsorption isotherms, adsorption kinetics of fluoride ions, and mechanism were all investigated. The results confirmed that the MMM contained a large number of hydroxyl and aluminum functional groups due to resin being added. The MMM exhibited the best fluorine ion adsorption capacity of 2.502 mg/g at a pH of 6 with the initial concentration of 6 mg/L. As well, adsorption kinetics of fluorine ion on MMM followed the pseudo-second-order model, while the adsorption behavior of fluorine ion on MMM was well simulated by the Langmuir isotherm model. The adsorption capacity of MMM remained stable after six cycles and the regeneration efficiency was still above 80%, resulting in a long-term stability adequate for fluorine ion removal. Complexation and ion exchange played a key role in the fluorine ion adsorption of MMM. These results indicated the MMM as novel type of absorbent had an excellent capacity for removing fluoride.

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http://hdl.handle.net/10453/165476