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dc.contributor.authorÇiftçi, Hakan
dc.contributor.authorErsoy, Bahri
dc.contributor.authorEvcin, Atilla
dc.date.accessioned2019-12-20T12:14:55Z
dc.date.available2019-12-20T12:14:55Z
dc.date.issued01.02.2017en_US
dc.identifier.urihttps://hdl.handle.net/11630/7583
dc.identifier.urihttps://doi.org/10.12693/APhysPolA.132.564
dc.description.abstractIn this study, magnetite (Fe 3 O ) nanoparticles were synthesized by chemical co-precipitation method, coated with silica, and then the surface of silica coated magnetite (Fe 4 3 O 4 @SiO ) nanoparticles was modified with (3aminopropyl)triethoxysilane (APTES) at first. Secondly, attained nanoparticles were characterized by the Fourier transform infrared, X-ray diffraction, transmission electron microscopy, the Brunauer–Emmett–Teller, vibrating sample magnetometer, and zeta-sizer devices/methods. Finally, detailed adsorption experiments were performed to remove hexavalent chromium (Cr(VI)) from aqueous media by synthesized nanoparticles. Mean size and specific surface area of synthesized nanoparticles were about 15 nm and 89.5 m 2 2 /g, respectively. The highest adsorption capacity among used adsorbents (Fe 3 O 4 , Fe 3 O 4 @SiO 2 , Fe 3 O 4 @SiO 2 @L) was attained by Fe nanoparticles and it was determined that adsorption capacity of the other two adsorbents was too low when compared to the Fe nanoparticles. Optimum conditions for Cr(VI) adsorption by Fe 3 O nanoparticles were: pH, 3; temperature, 55 4 C; contact time, 90 min; adsorbent concentration, 0.5 g/l and initial Cr(VI) concentration 10 mg/l. Under these conditions, adsorption capacity and removal percentage of Cr(VI) were found to be 33.45 mg/g and 88%, respectively. 3 O 4 3 O 4en_US
dc.description.sponsorshipAKÜ-BAPK / 14.FEN.BIL.33en_US
dc.language.isoengen_US
dc.publisherPolish Academy of Sciencesen_US
dc.identifier.doi10.12693/APhysPolA.132.564en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNanomagnetiteen_US
dc.subjectAdsorptionen_US
dc.subjectCr(IV)en_US
dc.subjectLangmuiren_US
dc.subjectFreundlichen_US
dc.subjectAdsorption Kineticsen_US
dc.titleSynthesis, characterization and Cr(VI) adsorption properties of modified magnetite nanoparticlesen_US
dc.typearticleen_US
dc.relation.journalACTA PHYSICA POLONICA Aen_US
dc.departmentMühendislik Fakültesien_US
dc.authorid0000-0002-0075-9039en_US
dc.identifier.volume132en_US
dc.identifier.startpage564en_US
dc.identifier.endpage569en_US
dc.identifier.issue3en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.contributor.institutionauthorÇiftçi, Hakan
dc.contributor.institutionauthorErsoy, Bahri
dc.contributor.institutionauthorEvcin, Atilla


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