Highly Hydrophilic Polyvinylidene Fluoride (PVDF) Ultrafiltration Membranes via Postfabrication Grafting of Surface-Tailored Silica Nanoparticles

Handle URI:
http://hdl.handle.net/10754/598504
Title:
Highly Hydrophilic Polyvinylidene Fluoride (PVDF) Ultrafiltration Membranes via Postfabrication Grafting of Surface-Tailored Silica Nanoparticles
Authors:
Liang, Shuai; Kang, Yan; Tiraferri, Alberto; Giannelis, Emmanuel P.; Huang, Xia; Elimelech, Menachem
Abstract:
Polyvinylidene fluoride (PVDF) has drawn much attention as a predominant ultrafiltration (UF) membrane material due to its outstanding mechanical and physicochemical properties. However, current applications suffer from the low fouling resistance of the PVDF membrane due to the intrinsic hydrophobic property of the membrane. The present study demonstrates a novel approach for the fabrication of a highly hydrophilic PVDF UF membrane via postfabrication tethering of superhydrophilic silica nanoparticles (NPs) to the membrane surface. The pristine PVDF membrane was grafted with poly(methacrylic acid) (PMAA) by plasma induced graft copolymerization, providing sufficient carboxyl groups as anchor sites for the binding of silica NPs, which were surface-tailored with amine-terminated cationic ligands. The NP binding was achieved through a remarkably simple and effective dip-coating technique in the presence or absence of the N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC)/N-hydroxysuccinimide (NHS) cross-linking process. The properties of the membrane prepared from the modification without EDC/NHS cross-linking were comparable to those for the membrane prepared with the EDC/NHS cross-linking. Both modifications almost doubled the surface energy of the functionalized membranes, which significantly improved the wettability of the membrane and converted the membrane surface from hydrophobic to highly hydrophilic. The irreversibly bound layer of superhydrophilic silica NPs endowed the membranes with strong antifouling performance as demonstrated by three sequential fouling filtration runs using bovine serum albumin (BSA) as a model organic foulant. The results suggest promising applications of the postfabrication surface modification technique in various membrane separation areas. © 2013 American Chemical Society.
Citation:
Liang S, Kang Y, Tiraferri A, Giannelis EP, Huang X, et al. (2013) Highly Hydrophilic Polyvinylidene Fluoride (PVDF) Ultrafiltration Membranes via Postfabrication Grafting of Surface-Tailored Silica Nanoparticles. ACS Applied Materials & Interfaces 5: 6694–6703. Available: http://dx.doi.org/10.1021/am401462e.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
KAUST Grant Number:
KUS-C1-018-02
Issue Date:
24-Jul-2013
DOI:
10.1021/am401462e
PubMed ID:
23796125
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
This publication is based on work supported by Award No. KUS-C1-018-02, granted by King Abdullah University of Science and Technology (KAUST). We also acknowledge the postgraduate scholarship program of the China Scholarship Council (CSC) and the use of facilities supported by YINQE and NSF MRSEC DMR 1119826.
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Full metadata record

DC FieldValue Language
dc.contributor.authorLiang, Shuaien
dc.contributor.authorKang, Yanen
dc.contributor.authorTiraferri, Albertoen
dc.contributor.authorGiannelis, Emmanuel P.en
dc.contributor.authorHuang, Xiaen
dc.contributor.authorElimelech, Menachemen
dc.date.accessioned2016-02-25T13:31:10Zen
dc.date.available2016-02-25T13:31:10Zen
dc.date.issued2013-07-24en
dc.identifier.citationLiang S, Kang Y, Tiraferri A, Giannelis EP, Huang X, et al. (2013) Highly Hydrophilic Polyvinylidene Fluoride (PVDF) Ultrafiltration Membranes via Postfabrication Grafting of Surface-Tailored Silica Nanoparticles. ACS Applied Materials & Interfaces 5: 6694–6703. Available: http://dx.doi.org/10.1021/am401462e.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.pmid23796125en
dc.identifier.doi10.1021/am401462een
dc.identifier.urihttp://hdl.handle.net/10754/598504en
dc.description.abstractPolyvinylidene fluoride (PVDF) has drawn much attention as a predominant ultrafiltration (UF) membrane material due to its outstanding mechanical and physicochemical properties. However, current applications suffer from the low fouling resistance of the PVDF membrane due to the intrinsic hydrophobic property of the membrane. The present study demonstrates a novel approach for the fabrication of a highly hydrophilic PVDF UF membrane via postfabrication tethering of superhydrophilic silica nanoparticles (NPs) to the membrane surface. The pristine PVDF membrane was grafted with poly(methacrylic acid) (PMAA) by plasma induced graft copolymerization, providing sufficient carboxyl groups as anchor sites for the binding of silica NPs, which were surface-tailored with amine-terminated cationic ligands. The NP binding was achieved through a remarkably simple and effective dip-coating technique in the presence or absence of the N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC)/N-hydroxysuccinimide (NHS) cross-linking process. The properties of the membrane prepared from the modification without EDC/NHS cross-linking were comparable to those for the membrane prepared with the EDC/NHS cross-linking. Both modifications almost doubled the surface energy of the functionalized membranes, which significantly improved the wettability of the membrane and converted the membrane surface from hydrophobic to highly hydrophilic. The irreversibly bound layer of superhydrophilic silica NPs endowed the membranes with strong antifouling performance as demonstrated by three sequential fouling filtration runs using bovine serum albumin (BSA) as a model organic foulant. The results suggest promising applications of the postfabrication surface modification technique in various membrane separation areas. © 2013 American Chemical Society.en
dc.description.sponsorshipThis publication is based on work supported by Award No. KUS-C1-018-02, granted by King Abdullah University of Science and Technology (KAUST). We also acknowledge the postgraduate scholarship program of the China Scholarship Council (CSC) and the use of facilities supported by YINQE and NSF MRSEC DMR 1119826.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectantifoulingen
dc.subjectfoulingen
dc.subjectmembrane functionalizationen
dc.subjectnanoparticlesen
dc.subjectPVDFen
dc.subjectsuperhydrophilicen
dc.subjectultrafiltrationen
dc.titleHighly Hydrophilic Polyvinylidene Fluoride (PVDF) Ultrafiltration Membranes via Postfabrication Grafting of Surface-Tailored Silica Nanoparticlesen
dc.typeArticleen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionTsinghua University, Beijing, Chinaen
dc.contributor.institutionCornell University, Ithaca, United Statesen
dc.contributor.institutionYale University, New Haven, United Statesen
kaust.grant.numberKUS-C1-018-02en
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