Physical–chemical properties, separation performance, and fouling resistance of mixed-matrix ultrafiltration membranes

Handle URI:
http://hdl.handle.net/10754/599192
Title:
Physical–chemical properties, separation performance, and fouling resistance of mixed-matrix ultrafiltration membranes
Authors:
Hoek, Eric M.V.; Ghosh, Asim K.; Huang, Xiaofei; Liong, Monty; Zink, Jeffrey I.
Abstract:
Herein we report on the formation and characterization of mixed-matrix ultrafiltration (UF) membranes hand-cast by nonsolvent induced phase inversion. We evaluated nanometer-to-micrometer sized inorganic fillers (silver, copper, silica, zeolite, and silver-zeolite) materials with polysulfone (PSf) as the polymeric dispersing matrix. In general, mixed-matrix membranes were rougher, more hydrophilic, and more mechanically robust. Only sub-micron zeolite-PSf mixed-matrix membranes exhibited simultaneous improvements in water permeability and solute selectivity; all other mixed-matrix membranes were more permeable, but less selective due to defects associated with poor polymer-filler binding. Protein and bacterial fouling resistance of mixed-matrix membranes containing silver, zeolite, and silver-zeolite nanoparticles were compared to a low-fouling, poly(acrylonitrile) (PAN) UF membrane. Zeolite and silver containing membranes exhibited better protein fouling resistance (due to higher hydrophilicity), whereas silver and silver-zeolite based membranes produce better bacterial fouling resistance due to antimicrobial properties. Overall, zeolite-PSf and silver exchanged zeolite-PSf membranes offered the best combination of improved permeability, selectivity, and fouling resistance - superior to the commercial PAN membrane. © 2011 Elsevier B.V.
Citation:
Hoek EMV, Ghosh AK, Huang X, Liong M, Zink JI (2011) Physical–chemical properties, separation performance, and fouling resistance of mixed-matrix ultrafiltration membranes. Desalination 283: 89–99. Available: http://dx.doi.org/10.1016/j.desal.2011.04.008.
Publisher:
Elsevier BV
Journal:
Desalination
KAUST Grant Number:
KUS-C1-018-02
Issue Date:
Dec-2011
DOI:
10.1016/j.desal.2011.04.008
Type:
Article
ISSN:
0011-9164
Sponsors:
This publication is based on work supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST), in addition to the UCLA California NanoSystems Institute (CNSI), QuantumSphere Inc., and NanoH<INF>2</INF>O Inc. The authors wish to express their appreciation to Prof. Ajit Mal and Shri Harsh K. Vaid in the Department of Mechanical & Aerospace Engineering at UCLA for providing access to the Instron (R) mechanical testing instrument, as well as Dr. Chi Min Ho (UCLA Mechanical & Aerospace Engineering Department) for providing access to the AFM. The authors also thank Dr. Stephen Kloos at GE Water Technologies for supplying PAN membrane samples.
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Full metadata record

DC FieldValue Language
dc.contributor.authorHoek, Eric M.V.en
dc.contributor.authorGhosh, Asim K.en
dc.contributor.authorHuang, Xiaofeien
dc.contributor.authorLiong, Montyen
dc.contributor.authorZink, Jeffrey I.en
dc.date.accessioned2016-02-25T13:54:37Zen
dc.date.available2016-02-25T13:54:37Zen
dc.date.issued2011-12en
dc.identifier.citationHoek EMV, Ghosh AK, Huang X, Liong M, Zink JI (2011) Physical–chemical properties, separation performance, and fouling resistance of mixed-matrix ultrafiltration membranes. Desalination 283: 89–99. Available: http://dx.doi.org/10.1016/j.desal.2011.04.008.en
dc.identifier.issn0011-9164en
dc.identifier.doi10.1016/j.desal.2011.04.008en
dc.identifier.urihttp://hdl.handle.net/10754/599192en
dc.description.abstractHerein we report on the formation and characterization of mixed-matrix ultrafiltration (UF) membranes hand-cast by nonsolvent induced phase inversion. We evaluated nanometer-to-micrometer sized inorganic fillers (silver, copper, silica, zeolite, and silver-zeolite) materials with polysulfone (PSf) as the polymeric dispersing matrix. In general, mixed-matrix membranes were rougher, more hydrophilic, and more mechanically robust. Only sub-micron zeolite-PSf mixed-matrix membranes exhibited simultaneous improvements in water permeability and solute selectivity; all other mixed-matrix membranes were more permeable, but less selective due to defects associated with poor polymer-filler binding. Protein and bacterial fouling resistance of mixed-matrix membranes containing silver, zeolite, and silver-zeolite nanoparticles were compared to a low-fouling, poly(acrylonitrile) (PAN) UF membrane. Zeolite and silver containing membranes exhibited better protein fouling resistance (due to higher hydrophilicity), whereas silver and silver-zeolite based membranes produce better bacterial fouling resistance due to antimicrobial properties. Overall, zeolite-PSf and silver exchanged zeolite-PSf membranes offered the best combination of improved permeability, selectivity, and fouling resistance - superior to the commercial PAN membrane. © 2011 Elsevier B.V.en
dc.description.sponsorshipThis publication is based on work supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST), in addition to the UCLA California NanoSystems Institute (CNSI), QuantumSphere Inc., and NanoH<INF>2</INF>O Inc. The authors wish to express their appreciation to Prof. Ajit Mal and Shri Harsh K. Vaid in the Department of Mechanical & Aerospace Engineering at UCLA for providing access to the Instron (R) mechanical testing instrument, as well as Dr. Chi Min Ho (UCLA Mechanical & Aerospace Engineering Department) for providing access to the AFM. The authors also thank Dr. Stephen Kloos at GE Water Technologies for supplying PAN membrane samples.en
dc.publisherElsevier BVen
dc.subjectMixed-matrixen
dc.subjectNanocompositeen
dc.subjectPoly(acrylonitrile)en
dc.subjectPolysulfoneen
dc.subjectSilveren
dc.subjectUltrafiltrationen
dc.subjectZeoliteen
dc.titlePhysical–chemical properties, separation performance, and fouling resistance of mixed-matrix ultrafiltration membranesen
dc.typeArticleen
dc.identifier.journalDesalinationen
dc.contributor.institutionUniversity of California, Los Angeles, Los Angeles, United Statesen
dc.contributor.institutionBhabha Atomic Research Centre, Mumbai, Indiaen
kaust.grant.numberKUS-C1-018-02en
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