Block copolymer hollow fiber membranes with catalytic activity and pH-response

Handle URI:
http://hdl.handle.net/10754/562907
Title:
Block copolymer hollow fiber membranes with catalytic activity and pH-response
Authors:
Hilke, Roland; Neelakanda, Pradeep; Madhavan, Poornima ( 0000-0003-0570-8174 ) ; Vainio, Ulla; Behzad, Ali Reza; Sougrat, Rachid; Nunes, Suzana Pereira ( 0000-0002-3669-138X ) ; Peinemann, Klaus-Viktor ( 0000-0003-0309-9598 )
Abstract:
We fabricated block copolymer hollow fiber membranes with self-assembled, shell-side, uniform pore structures. The fibers in these membranes combined pores able to respond to pH and acting as chemical gates that opened above pH 4, and catalytic activity, achieved by the incorporation of gold nanoparticles. We used a dry/wet spinning process to produce the asymmetric hollow fibers and determined the conditions under which the hollow fibers were optimized to create the desired pore morphology and the necessary mechanical stability. To induce ordered micelle assembly in the doped solution, we identified an ideal solvent mixture as confirmed by small-angle X-ray scattering. We then reduced p-nitrophenol with a gold-loaded fiber to confirm the catalytic performance of the membranes. © 2013 American Chemical Society.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Water Desalination and Reuse Research Center (WDRC); Advanced Nanofabrication, Imaging and Characterization Core Lab; Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program; Core Labs; Nanostructured Polymeric Membrane Lab
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
Issue Date:
14-Aug-2013
DOI:
10.1021/am401163h
PubMed ID:
23865535
Type:
Article
ISSN:
19448244
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Environmental Science and Engineering Program; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHilke, Rolanden
dc.contributor.authorNeelakanda, Pradeepen
dc.contributor.authorMadhavan, Poornimaen
dc.contributor.authorVainio, Ullaen
dc.contributor.authorBehzad, Ali Rezaen
dc.contributor.authorSougrat, Rachiden
dc.contributor.authorNunes, Suzana Pereiraen
dc.contributor.authorPeinemann, Klaus-Viktoren
dc.date.accessioned2015-08-03T11:14:57Zen
dc.date.available2015-08-03T11:14:57Zen
dc.date.issued2013-08-14en
dc.identifier.issn19448244en
dc.identifier.pmid23865535en
dc.identifier.doi10.1021/am401163hen
dc.identifier.urihttp://hdl.handle.net/10754/562907en
dc.description.abstractWe fabricated block copolymer hollow fiber membranes with self-assembled, shell-side, uniform pore structures. The fibers in these membranes combined pores able to respond to pH and acting as chemical gates that opened above pH 4, and catalytic activity, achieved by the incorporation of gold nanoparticles. We used a dry/wet spinning process to produce the asymmetric hollow fibers and determined the conditions under which the hollow fibers were optimized to create the desired pore morphology and the necessary mechanical stability. To induce ordered micelle assembly in the doped solution, we identified an ideal solvent mixture as confirmed by small-angle X-ray scattering. We then reduced p-nitrophenol with a gold-loaded fiber to confirm the catalytic performance of the membranes. © 2013 American Chemical Society.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectblock copolymeren
dc.subjectcatalysisen
dc.subjectfiltrationen
dc.subjecthollow fiberen
dc.subjectmembraneen
dc.subjectself-assemblyen
dc.titleBlock copolymer hollow fiber membranes with catalytic activity and pH-responseen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical and Biological Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentNanostructured Polymeric Membrane Laben
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionPhoton Science, Deutsches Elektronen Synchroton (DESY), Notkestr. 85, 22607 Hamburg, Germanyen
kaust.authorHilke, Rolanden
kaust.authorBehzad, Ali Rezaen
kaust.authorSougrat, Rachiden
kaust.authorNunes, Suzana Pereiraen
kaust.authorPeinemann, Klaus-Viktoren
kaust.authorNeelakanda, Pradeepen
kaust.authorMadhavan, Poornimaen

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