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dc.contributor.authorKaner, Papatya
dc.contributor.authorJohnson, Daniel J.
dc.contributor.authorŞeker, Erol
dc.contributor.authorHilal, Nidal
dc.contributor.authorAlsoy Altınkaya, Sacide
dc.date.accessioned2017-07-19T12:05:43Z
dc.date.available2017-07-19T12:05:43Z
dc.date.issued2015-11
dc.identifier.citationKaner, P., Johnson, D.J., Şeker, E., Hilal, N., and Alsoy Altınkaya, S. (2015). Layer-by-layer surface modification of polyethersulfone membranes using polyelectrolytes and AgCl/TiO2 xerogels. Journal of Membrane Science, doi:10.1016/j.memsci.2015.05.048en_US
dc.identifier.issn0376-7388
dc.identifier.urihttps://doi.org/10.1016/j.memsci.2015.05.048
dc.identifier.urihttp://hdl.handle.net/11147/5964
dc.description.abstractIn this study, the layer-by-layer (LbL) assembly method was employed to modify a commercial polyethersulfone (PES) membrane by successive adsorption of chitosan and alginate as cationic and anionic polyelectrolytes. To enhance anti-biofouling property, pure, PEG mixed and PEGylated AgCl/TiO2 xerogels were incorporated solely in the top layer of the LbL-modified membranes. Organic and biological foulings were addressed separately using alginate and Escherichia coli bacteria suspensions as the organic and biological model foulants, respectively. LbL-modifying the commercial PES membrane successively with chitosan and alginate polyelectrolyte multilayers prevented organic fouling extensively. In addition, we found that AgCl/TiO2-incorporated membranes show higher water permeability and improved resistance to biological fouling as compared to the PES membrane. Silver amounts in consecutively collected permeate samples were quantified by ICP-MS analysis to assess the stability of AgCl/TiO2-incorporated layers. Silver loss per filtration cycle followed an increasing trend initially, up to a filtration volume totaling 3000L/m2, leading to 4.2% reduction in the immobilized silver amount. After that, silver loss per filtration cycle stabilized at ~7.44μg/L, which extrapolates to ~265 days time-span for the remaining silver to be released at a filtration rate of ~1000L/m2 h. Antibacterial activity tests showed that AgCl/TiO2-incorporated layers do not permit bacterial growth on the membrane surface.en_US
dc.description.sponsorshipEuropean Union (246039)en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.memsci.2015.05.048en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAntifoulingen_US
dc.subjectSilver xerogelen_US
dc.subjectUltrafiltration membraneen_US
dc.subjectLayer by layer assemblyen_US
dc.subjectWater treatmenten_US
dc.titleLayer-by-layer surface modification of polyethersulfone membranes using polyelectrolytes and AgCl/TiO2 xerogelsen_US
dc.typearticleen_US
dc.contributor.authorIDTR115072en_US
dc.contributor.authorIDTR2091en_US
dc.contributor.iztechauthorKaner, Papatya
dc.contributor.iztechauthorŞeker, Erol
dc.contributor.iztechauthorAlsoy Altınkaya, Sacide
dc.relation.journalJournal of Membrane Scienceen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume493en_US
dc.identifier.startpage807en_US
dc.identifier.endpage819en_US
dc.identifier.wosWOS:000360554300079
dc.identifier.scopusSCOPUS:2-s2.0-84937598115
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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