Polyrotaxane-based thin film composite membranes for enhanced nanofiltration performance

Liu, M; Nothling, MD; Tan, SSL; Webley, PA; Qiao, GG; Fu, Q

Polyrotaxane-based thin film composite membranes for enhanced nanofiltration performance

Liu, M Nothling, MD Tan, SSL Webley, PA Qiao, GG Fu, Q

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Separation and Purification Technology, 2020, 246
Issue Date:: 2020-09-01

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Field	Value	Language
dc.contributor.author	Liu, M
dc.contributor.author	Nothling, MD
dc.contributor.author	Tan, SSL
dc.contributor.author	Webley, PA
dc.contributor.author	Qiao, GG
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.date.accessioned	2021-03-28T07:31:48Z
dc.date.available	2021-03-28T07:31:48Z
dc.date.issued	2020-09-01
dc.identifier.citation	Separation and Purification Technology, 2020, 246
dc.identifier.issn	1383-5866
dc.identifier.issn	1873-3794
dc.identifier.uri	http://hdl.handle.net/10453/147567
dc.description.abstract	© 2020 An urgent need exists for the development of advanced water purification technologies to meet the increasing global demand being placed on freshwater resources. Membrane-based separation technologies for size-selective contaminant removal represent a promising approach to achieve this goal. Here, a novel thin film composite nanofiltration membrane is prepared via interfacial polymerization of α-cyclodextrin on a commercially available polyacrylonitrile substrate. Subsequent in-situ inclusion complexation of alkyne-functionalized poly(ethylene glycol) (PEG) is then used to tune the polyrotaxane-based pores for size-dependent filtration. The resultant membrane shows excellent size-selective rejection rates for organic dye (e.g. rhodamine B, >99%) as well as heavy-metal ions (e.g. Co(II), >90%), while crucially maintaining high water permeance (e.g. H2O: 7.1 L h−1 m−2 bar−1). The facile and straightforward synthetic approach to the fabrication of polyrotaxane nanofiltration membranes, combined with their strong nanofiltration separation performance, holds significant promise for membrane-based water purification applications.
dc.language	English
dc.publisher	ELSEVIER
dc.relation	http://purl.org/au-research/grants/arc/FT180100312
dc.relation.ispartof	Separation and Purification Technology
dc.relation.isbasedon	10.1016/j.seppur.2020.116893
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0301 Analytical Chemistry, 0904 Chemical Engineering
dc.subject.classification	Chemical Engineering
dc.title	Polyrotaxane-based thin film composite membranes for enhanced nanofiltration performance
dc.type	Journal Article
utslib.citation.volume	246
utslib.for	0301 Analytical Chemistry
utslib.for	0904 Chemical 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	open_access	*
dc.date.updated	2021-03-28T07:31:42Z
pubs.publication-status	Published
pubs.volume	246

Abstract:

© 2020 An urgent need exists for the development of advanced water purification technologies to meet the increasing global demand being placed on freshwater resources. Membrane-based separation technologies for size-selective contaminant removal represent a promising approach to achieve this goal. Here, a novel thin film composite nanofiltration membrane is prepared via interfacial polymerization of α-cyclodextrin on a commercially available polyacrylonitrile substrate. Subsequent in-situ inclusion complexation of alkyne-functionalized poly(ethylene glycol) (PEG) is then used to tune the polyrotaxane-based pores for size-dependent filtration. The resultant membrane shows excellent size-selective rejection rates for organic dye (e.g. rhodamine B, >99%) as well as heavy-metal ions (e.g. Co(II), >90%), while crucially maintaining high water permeance (e.g. H2O: 7.1 L h−1 m−2 bar−1). The facile and straightforward synthetic approach to the fabrication of polyrotaxane nanofiltration membranes, combined with their strong nanofiltration separation performance, holds significant promise for membrane-based water purification applications.

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http://hdl.handle.net/10453/147567