Interfacially stable MOF nanosheet membrane with tailored nanochannels for ultrafast and thermo-responsive nanofiltration
Two-dimensional nanosheet membranes with responsive nanochannels are appealing for controlled mass transfer/separation, but limited by everchanging thicknesses arising from unstable interfaces. Herein, an interfacially stable, thermo-responsive nanosheet membrane is assembled from twin-chain stabili...
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| Veröffentlicht in: | Nano research 2020-11, Vol.13 (11), p.2973-2978 |
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| creator | Jia, Wei Wu, Baohu Sun, Shengtong Wu, Peiyi |
| description | Two-dimensional nanosheet membranes with responsive nanochannels are appealing for controlled mass transfer/separation, but limited by everchanging thicknesses arising from unstable interfaces. Herein, an interfacially stable, thermo-responsive nanosheet membrane is assembled from twin-chain stabilized metal-organic framework (MOF) nanosheets, which function via two cyclic amide-bearing polymers, thermo-responsive poly(N-vinyl caprolactam) (PVCL) for adjusting channel size, and non-responsive polyvinylpyrrolidone for supporting constant interlayer distance. Owing to the microporosity of MOF nanosheets and controllable interface wettability, the hybrid membrane demonstrates both superior separation performance and stable thermo-responsiveness. Scattering and correlation spectroscopic analyses further corroborate the respective roles of the two polymers and reveal the microenvironment changes of nanochannels are motivated by the dehydration of PVCL chains. |
| doi_str_mv | 10.1007/s12274-020-2959-6 |
| format | Article |
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Herein, an interfacially stable, thermo-responsive nanosheet membrane is assembled from twin-chain stabilized metal-organic framework (MOF) nanosheets, which function via two cyclic amide-bearing polymers, thermo-responsive poly(N-vinyl caprolactam) (PVCL) for adjusting channel size, and non-responsive polyvinylpyrrolidone for supporting constant interlayer distance. Owing to the microporosity of MOF nanosheets and controllable interface wettability, the hybrid membrane demonstrates both superior separation performance and stable thermo-responsiveness. Scattering and correlation spectroscopic analyses further corroborate the respective roles of the two polymers and reveal the microenvironment changes of nanochannels are motivated by the dehydration of PVCL chains.</description><identifier>ISSN: 1998-0124</identifier><identifier>EISSN: 1998-0000</identifier><identifier>DOI: 10.1007/s12274-020-2959-6</identifier><language>eng</language><publisher>Beijing: Tsinghua University Press</publisher><subject>Atomic/Molecular Structure and Spectra ; Biomedicine ; Biotechnology ; Caprolactam ; Chemistry and Materials Science ; Condensed Matter Physics ; Correlation analysis ; Dehydration ; Graphene ; Interfaces ; Interlayers ; Laboratories ; Mass transfer ; Materials Science ; Membranes ; Metal-organic frameworks ; Microenvironments ; Microporosity ; Nanochannels ; Nanofiltration ; Nanosheets ; Nanotechnology ; Poly(N-vinyl caprolactam) ; Polymers ; Polyvinylpyrrolidone ; Research Article ; Scanning electron microscopy ; Separation ; Stability ; Thickness ; Wettability</subject><ispartof>Nano research, 2020-11, Vol.13 (11), p.2973-2978</ispartof><rights>Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020</rights><rights>Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c344t-a7337cc7f62e3d1624cc433e9d42e27898a9fc27a67abd2ca59b47e5628736bd3</citedby><cites>FETCH-LOGICAL-c344t-a7337cc7f62e3d1624cc433e9d42e27898a9fc27a67abd2ca59b47e5628736bd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12274-020-2959-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12274-020-2959-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Jia, Wei</creatorcontrib><creatorcontrib>Wu, Baohu</creatorcontrib><creatorcontrib>Sun, Shengtong</creatorcontrib><creatorcontrib>Wu, Peiyi</creatorcontrib><title>Interfacially stable MOF nanosheet membrane with tailored nanochannels for ultrafast and thermo-responsive nanofiltration</title><title>Nano research</title><addtitle>Nano Res</addtitle><description>Two-dimensional nanosheet membranes with responsive nanochannels are appealing for controlled mass transfer/separation, but limited by everchanging thicknesses arising from unstable interfaces. Herein, an interfacially stable, thermo-responsive nanosheet membrane is assembled from twin-chain stabilized metal-organic framework (MOF) nanosheets, which function via two cyclic amide-bearing polymers, thermo-responsive poly(N-vinyl caprolactam) (PVCL) for adjusting channel size, and non-responsive polyvinylpyrrolidone for supporting constant interlayer distance. Owing to the microporosity of MOF nanosheets and controllable interface wettability, the hybrid membrane demonstrates both superior separation performance and stable thermo-responsiveness. Scattering and correlation spectroscopic analyses further corroborate the respective roles of the two polymers and reveal the microenvironment changes of nanochannels are motivated by the dehydration of PVCL chains.</description><subject>Atomic/Molecular Structure and Spectra</subject><subject>Biomedicine</subject><subject>Biotechnology</subject><subject>Caprolactam</subject><subject>Chemistry and Materials Science</subject><subject>Condensed Matter Physics</subject><subject>Correlation analysis</subject><subject>Dehydration</subject><subject>Graphene</subject><subject>Interfaces</subject><subject>Interlayers</subject><subject>Laboratories</subject><subject>Mass transfer</subject><subject>Materials Science</subject><subject>Membranes</subject><subject>Metal-organic 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| fulltext | fulltext |
| identifier | ISSN: 1998-0124 |
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| issn | 1998-0124 1998-0000 |
| language | eng |
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| subjects | Atomic/Molecular Structure and Spectra Biomedicine Biotechnology Caprolactam Chemistry and Materials Science Condensed Matter Physics Correlation analysis Dehydration Graphene Interfaces Interlayers Laboratories Mass transfer Materials Science Membranes Metal-organic frameworks Microenvironments Microporosity Nanochannels Nanofiltration Nanosheets Nanotechnology Poly(N-vinyl caprolactam) Polymers Polyvinylpyrrolidone Research Article Scanning electron microscopy Separation Stability Thickness Wettability |
| title | Interfacially stable MOF nanosheet membrane with tailored nanochannels for ultrafast and thermo-responsive nanofiltration |
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