Ultrathin Metal-Organic Framework Nanosheets as a Gutter Layer for Flexible Composite Gas Separation Membranes.

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

Ultrathin Metal-Organic Framework Nanosheets as a Gutter Layer for Flexible Composite Gas Separation Membranes.

Liu, M Xie, K Nothling, MD Gurr, PA Tan, SSL Fu, Q

Webley, PA Qiao, GG

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Publisher:: AMER CHEMICAL SOC
Publication Type:: Journal Article
Citation:: ACS Nano, 2018, 12, (11), pp. 11591-11599
Issue Date:: 2018-11-27

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Field	Value	Language
dc.contributor.author	Liu, M
dc.contributor.author	Xie, K
dc.contributor.author	Nothling, MD
dc.contributor.author	Gurr, PA
dc.contributor.author	Tan, SSL
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.contributor.author	Webley, PA
dc.contributor.author	Qiao, GG
dc.date.accessioned	2022-09-03T07:17:11Z
dc.date.available	2022-09-03T07:17:11Z
dc.date.issued	2018-11-27
dc.identifier.citation	ACS Nano, 2018, 12, (11), pp. 11591-11599
dc.identifier.issn	1936-0851
dc.identifier.issn	1936-086X
dc.identifier.uri	http://hdl.handle.net/10453/161260
dc.description.abstract	Ultrathin metal-organic framework (MOF) nanosheets show great potential in various separation applications. In this study, MOF nanosheets are incorporated as a gutter layer in high-performance, flexible thin-film composite membranes (TFCMs) for CO2 separation. Ultrathin MOF nanosheets (∼3-4 nm) were prepared via a surfactant-assisted method and subsequently coated onto a flexible porous support by vacuum filtration. This produced an ultrathin (∼25 nm), extremely flat MOF layer, which serves as a highly permeable gutter with reduced gas resistance when compared with conventional polydimethylsiloxane gutter layers. Subsequent spin-coating of the ultrathin MOF gutter layer with a polymeric selective layer (Polyactive) afforded a TFCM exhibiting the best CO2 separation performance yet reported for a flexible composite membrane (CO2 permeance of ∼2100 GPU with a CO2/N2 ideal selectivity of ∼30). Several unique MOF nanosheets were examined as gutter layers, each differing with regard to structure and thickness (∼10 and ∼80 nm), with results indicating that flexibility in the ultrathin MOF layer is critical for optimized membrane performance. The inclusion of ultrathin MOF nanosheets into next-generation TFCMs has the potential for major improvements in gas separation performance over current composite membrane designs.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	AMER CHEMICAL SOC
dc.relation	http://purl.org/au-research/grants/arc/FT180100312
dc.relation.ispartof	ACS Nano
dc.relation.isbasedon	10.1021/acsnano.8b06811
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Ultrathin Metal-Organic Framework Nanosheets as a Gutter Layer for Flexible Composite Gas Separation Membranes.
dc.type	Journal Article
utslib.citation.volume	12
utslib.location.activity	United States
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	2022-09-03T07:17:08Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	12
utslib.citation.issue	11

Abstract:

Ultrathin metal-organic framework (MOF) nanosheets show great potential in various separation applications. In this study, MOF nanosheets are incorporated as a gutter layer in high-performance, flexible thin-film composite membranes (TFCMs) for CO2 separation. Ultrathin MOF nanosheets (∼3-4 nm) were prepared via a surfactant-assisted method and subsequently coated onto a flexible porous support by vacuum filtration. This produced an ultrathin (∼25 nm), extremely flat MOF layer, which serves as a highly permeable gutter with reduced gas resistance when compared with conventional polydimethylsiloxane gutter layers. Subsequent spin-coating of the ultrathin MOF gutter layer with a polymeric selective layer (Polyactive) afforded a TFCM exhibiting the best CO2 separation performance yet reported for a flexible composite membrane (CO2 permeance of ∼2100 GPU with a CO2/N2 ideal selectivity of ∼30). Several unique MOF nanosheets were examined as gutter layers, each differing with regard to structure and thickness (∼10 and ∼80 nm), with results indicating that flexibility in the ultrathin MOF layer is critical for optimized membrane performance. The inclusion of ultrathin MOF nanosheets into next-generation TFCMs has the potential for major improvements in gas separation performance over current composite membrane designs.

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http://hdl.handle.net/10453/161260