Superparamagnetic nanomaterial Fe3O4-TiO2 for the removal of As(V) and As(III) from aqueous solutions

Basit Öğe Kaydı
dc.contributor.authorBeduk, Fatma
dc.date.accessioned2024-02-23T14:20:20Z
dc.date.available2024-02-23T14:20:20Z
dc.date.issued2016
dc.departmentNEÜen_US
dc.description.abstractA magnetically separable nanomaterial Fe3O4-TiO2 was synthesized and characterized which was subsequently used for the removal of arsenic (V) from aqueous solutions. The surface morphology, magnetic properties, crystalline structure, thermal stability and Brunauer-Emmet-Teller surface area of the synthesized Fe3O4-TiO2 nanoparticles (NPs) are characterized by scanning electron microscope and high-resolution transmission electron microscope, vibrating sample magnetometry, X-ray diffractometer, thermogravimetric analysis and multi point function surface area analyzer. The saturation magnetization of Fe3O4-TiO2 NPs was determined to be 50.97 emu/g, which makes them superparamagnetic. The surface area of Fe3O4-TiO2 NPs was as much as 94.9 m(2)/g. The main factors affecting adsorption efficiency, such as solution pH, reaction time, initial As( V) concentration and adsorbent concentration are investigated. When the adsorption isotherms were analyzed by the Langmuir, Freundlich and Dubinin-Radushkevich models, equilibrium data were found to be well represented by Freundlich isotherm, and adsorption on Fe3O4-TiO2 NPs fitted well with pseudo-second-order kinetic model. The maximum adsorption capacity of As(V) on Fe3O4-TiO2 NPs, calculated by the Freundlich model was determined at 11.434 mu g/g. 1.0 g/L of Fe3O4-TiO2 NPs was efficient for complete removal of 100 mu g/L As(V) in 1 h. Fe3O4-TiO2 NPs was also effective for 93% removal of 100 mu g/L As(III). Matrix effect was determined using As(V)-contaminated well water. Successfull results were obtained for purification of real well water containing 137.12 mu g/L As(V). Results show that Fe3O4-TiO2 NPs are promising adsorbents with an advantage of magnetic separation.en_US
dc.identifier.doi10.1080/09593330.2015.1132777
dc.identifier.endpage1801en_US
dc.identifier.issn0959-3330
dc.identifier.issn1479-487X
dc.identifier.issue14en_US
dc.identifier.pmid26831455en_US
dc.identifier.scopus2-s2.0-84958063901en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1790en_US
dc.identifier.urihttps://doi.org/10.1080/09593330.2015.1132777
dc.identifier.urihttps://hdl.handle.net/20.500.12452/13124
dc.identifier.volume37en_US
dc.identifier.wosWOS:000375950500007en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Ltden_US
dc.relation.ispartofEnvironmental Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFe3o4-Tio2en_US
dc.subjectNanoparticlesen_US
dc.subjectArsenicen_US
dc.subjectAdsorptionen_US
dc.subjectMagnetic Separationen_US
dc.titleSuperparamagnetic nanomaterial Fe3O4-TiO2 for the removal of As(V) and As(III) from aqueous solutionsen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
PubMed İndeksli Yayın Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu