Fe2+ Removal from Water Using PVDF Membranes, Modified with Magnetite Nanoparticles, by Polyelectrolyte Enhanced Ultrafiltration

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dc.contributor.authorKonovalova, Victoria
dc.contributor.authorKolesnyk, Iryna
dc.contributor.authorIvanenko, Olena
dc.contributor.authorBurban, Anatoliy
dc.date.accessioned2019-05-16T15:20:52Z
dc.date.available2019-05-16T15:20:52Z
dc.date.issued2018
dc.description.abstractThe aim of this study was to show results of Fe2+ removal from water by polyelectrolyte enhanced ultrafiltration on polyvinylidene fluoride membranes modified with magnetite nanoparticles. Magnetite nanoparticles were synthesized by the co-precipitation method and stabilized with sodium polyacrylate. At first stage, the surface of PVDF membranes was modified by grafting of polyethylenimine. At the second stage the polyelectrolyte, grafted to the membrane surface, was used as a linker for magnetite nanoparticles immobilization. The modification of membranes was confirmed by IR spectroscopy, scanning electron microscopy and electro kinetic analysis. The dependence of zeta-potential on pH for PVDF membrane modified with PEI has confirmed the modification of the membrane surface as zeta-potential increases with pH decrease. SEM has shown that the surface of modified membrane is densely covered with nanoparticles, which form clusters. The dependence of the volumetric flux on the applied pressure at various concentrations of the carboxymethylcellulose (CMC) has been studied. Polyelectrolyte enhanced ultrafiltration with CMC has been used for iron(II) removal at initial Fe2+ concentration of 20 mg/L. The concentrations of iron(II) in permeate using an unmodified membrane has ranged from 0.6 to 1.0 mg/L, whereas for the modified membrane it has been 0.02÷0.08 mg/L.en_US
dc.identifier.citationFe2+ Removal from Water Using PVDF Membranes, Modified with Magnetite Nanoparticles, by Polyelectrolyte Enhanced Ultrafiltration / V. Konovalova, I. Kolesnyk, O. Ivanenko, A. Burban // Engineering and Protection of Environment. - 2018. - P. 39-49.en_US
dc.identifier.issn1505-3695
dc.identifier.urihttps://ekmair.ukma.edu.ua/handle/123456789/15618
dc.language.isoenen_US
dc.relation.sourceEngineering and Protection of Environmenten_US
dc.statuspublished earlieren_US
dc.subjectpolyvinylidene fluoride membraneen_US
dc.subjectmagnetite nanoparticlesen_US
dc.subjectpolyelectrolyte enhanced ultrafiltrationen_US
dc.subjectcarboxymethylcelluloseen_US
dc.subjectarticleen_US
dc.titleFe2+ Removal from Water Using PVDF Membranes, Modified with Magnetite Nanoparticles, by Polyelectrolyte Enhanced Ultrafiltrationen_US
dc.typeArticleen_US
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