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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b02044
|2 doi
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|a pubmed24n0966.xml
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|a (NLM)30346770
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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 Ma, Wen
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Zwitterion-Functionalized Graphene Oxide Incorporated Polyamide Membranes with Improved Antifouling Properties
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|c 2019
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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 Revised 20.11.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In this study, zwitterionic polymer poly(sulfobetaine methacrylate) (PSBMA) functionalized graphene oxide (GO) nanocomposites (GO-PSBMA) were synthesized and incorporated into the active layer of a polyamide membrane to improve its water perm-selectivity and fouling-resistant properties. GO-PSBMA nanocomposite contained covalently tethered PSBMA brushes on GO sheets, which were grown by activators regenerated by the electron transfer-atom transfer radical polymerization technique via the "graft-from" strategy. The grafting of zwitterionic PSBMA partially neutralized the surface charge of GO and increased its dispersibility in organic solvent. The incorporation of the GO-PSBMA-1h nanocomposite in the active layer of the polyamide membrane significantly improved surface hydrophilicity of the membrane and reduced its charge density. A near twofold increase in water permeation flux, with the nonsignificant change in MgSO4 and NaCl rejection, was achieved after the incorporation of 0.3 wt % of GO-PSBMA-1h in the membrane casting solution. With an improved water affinity, the fabricated nanocomposite membrane exhibited a near 80% reduction in bacterial ( Escherichia coli) attachment in comparison to the control membrane, even after 48 h of culture. In a crossflow filtration test, the nanocomposite membrane exhibited less of a reduction in the flux associated with bovine serum albumin fouling and salt ion scaling. The results demonstrated that incorporating zwitterionic polymer-decorated GO in the polyamide skin layer is a promising method to fabricate thin film nanocomposite membranes with improved water flux and fouling resistance
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Chen, Tiantian
|e verfasserin
|4 aut
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1 |
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|a Nanni, Santino
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Liuqing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ye, Zhibin
|e verfasserin
|4 aut
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| 700 |
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|a Rahaman, Md Saifur
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 35(2019), 5 vom: 05. Feb., Seite 1513-1525
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:35
|g year:2019
|g number:5
|g day:05
|g month:02
|g pages:1513-1525
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|u http://dx.doi.org/10.1021/acs.langmuir.8b02044
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