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dc.contributor.authorShevate, Rahul
dc.contributor.authorKumar, Mahendra
dc.contributor.authorKarunakaran, Madhavan
dc.contributor.authorHedhili, Mohamed N.
dc.contributor.authorPeinemann, Klaus-Viktor
dc.date.accessioned2017-02-07T08:28:37Z
dc.date.available2017-02-07T08:28:37Z
dc.date.issued2017-02-03
dc.identifier.citationShevate R, Kumar M, Karunakaran M, Hedhili MN, Peinemann K-V (2017) Polydopamine/Cysteine surface modified isoporous membranes with self-cleaning properties. Journal of Membrane Science. Available: http://dx.doi.org/10.1016/j.memsci.2017.01.058.
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2017.01.058
dc.identifier.urihttp://hdl.handle.net/10754/622842
dc.description.abstractThe major challenge in membrane filtration is fouling which reduces the membrane performance. Fouling is mainly due to the adhesion of foulants on the membrane surfaces. In this work, we studied the fouling behaviour of polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) isoporous membrane and the mussel inspired polydopamine/L-cysteine isoporous zwitterionic membrane. Polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) isoporous membranes were fabricated via self-assembly and non-solvent induced phase separation method. Subsequently, the isoporous membrane was modified by a mild mussel-inspired polydopamine (PDA) coating; the isoporous surface structure and the water flux was retained. Zwitterionic L-cysteine was further anchored on the PDA coated membranes via Michael addition reaction at pH 7 and 50 °C to alleviate their antifouling ability with foulants solution. The membranes were thoroughly characterized using X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), atomic force microscopy (AFM) and zeta potential measurements. Contact angle and dynamic scanning calorimetry (DSC) measurements were carried out to examine the hydrophilicity. The pH-responsive behaviour of the modified membrane remains unchanged and antifouling ability after PDA/L-cysteine functionalization was improved. The modified and unmodified isoporous membranes were tested using humic acid and natural organic matter model solutions at 0.5 bar feed pressure.
dc.description.sponsorshipThe authors acknowledge the financial support from King Abdullah University of Science and Technology (KAUST), Saudi Arabia.
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0376738816311012
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Membrane Science, 3 February 2017. DOI: 10.1016/j.memsci.2017.01.058
dc.subjectBlock copolymer membranes
dc.subjectself-assembly
dc.subjectpolydopamine
dc.subjectzwitterionic surface modification
dc.subjectantifouling
dc.subjectfiltration
dc.titlePolydopamine/Cysteine surface modified isoporous membranes with self-cleaning properties
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSurface Science
dc.identifier.journalJournal of Membrane Science
dc.eprint.versionPost-print
kaust.personShevate, Rahul
kaust.personKumar, Mahendra
kaust.personKarunakaran, Madhavan
kaust.personHedhili, Mohamed N.
kaust.personPeinemann, Klaus-Viktor
refterms.dateFOA2019-02-03T00:00:00Z
dc.date.published-online2017-02-03
dc.date.published-print2017-05


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