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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201705973
|2 doi
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|a pubmed24n0938.xml
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|a (DE-627)NLM281427151
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|a (NLM)29484724
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Jiang, Zhiwei
|e verfasserin
|4 aut
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|a Water Transport through Ultrathin Polyamide Nanofilms Used for Reverse Osmosis
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 01.08.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Thin-film composite membranes comprising a polyamide nanofilm separating layer on a support material are state of the art for desalination by reverse osmosis. Nanofilm thickness is thought to determine the rate of water transport through the membranes; although due to the fast and relatively uncontrolled interfacial polymerization reaction employed to form these nanofilms, they are typically crumpled and the separating layer is reported to be ≈50-200 nm thick. This crumpled structure has confounded exploration of the independent effects of thickness, permeation mechanism, and the support material. Herein, smooth sub-8 nm polyamide nanofilms are fabricated at a free aqueous-organic interface, exhibiting chemical homogeneity at both aqueous and organic facing surfaces. Transfer of these ultrathin nanofilms onto porous supports provides fast water transport through the resulting nanofilm composite membranes. Manipulating the intrinsic nanofilm thickness from ≈15 down to 8 nm reveals that water permeance increases proportionally with the thickness decrease, after which it increases nonlinearly to 2.7 L m-2 h-1 bar-1 as the thickness is further reduced to ≈6 nm
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|a Journal Article
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|a composite membranes
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|a desalination
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|a interfacial polymerization
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|a reverse osmosis
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|a ultrathin nanofilms
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1 |
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|a Karan, Santanu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Livingston, Andrew G
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 15 vom: 15. Apr., Seite e1705973
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:30
|g year:2018
|g number:15
|g day:15
|g month:04
|g pages:e1705973
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| 856 |
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|u http://dx.doi.org/10.1002/adma.201705973
|3 Volltext
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