Removal of toxic Cr(VI) from aqueous medium with effective magnetic carbon-based nanocomposites

Basit Öğe Kaydı
dc.contributor.authorCavusoglu, Ferda Civan
dc.contributor.authorOzcelik, Gulsum
dc.contributor.authorBayazit, Sahika Sena
dc.date.accessioned2024-03-13T10:33:28Z
dc.date.available2024-03-13T10:33:28Z
dc.date.issued2023
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractCr(VI), which has toxic effects, is a heavy metal and it must be removed from the environment due to the various damages it causes. In this study, the removal of Cr(VI) pollutants from aqueous solutions with Fe3O4-based materials using a batch adsorption technique was investigated. Magnetically modified graphene nanoplatelet (GNP)-based nanocomposites were prepared and their structures were characterized by FTIR, XRD, SEM, BET, and TGA techniques. The effects of various physicochemical parameters such as adsorbent dose, contact time, initial Cr(VI) solution concentration, pH, and the presence of coexisting ions (NaCl) on the adsorption process were investigated. Accordingly, the optimum conditions for Cr(VI) removal were determined. Nonlinear Langmuir, Freundlich, and Temkin isotherm models and pseudo-first-order, pseudo-second-order, and Bangham kinetic models were used to investigate the adsorption mechanism. The experimental data relatively fit the second-order kinetic model and the Freundlich isotherm model. The maximum adsorption capacities for pure Fe3O4 (Fe:GNP 1:0), Fe:GNP (2:1), and Fe:GNP (1:1) nanocomposite materials at 298 K and pH of approximately 5 were obtained as 12.71 mg/g, 27.03 mg/g, and 62.27 mg/g, respectively. This result showed that Cr(VI) removal increased as the amount of GNP in the composite material increased. Generally, the results confirmed that magnetically modified GNP based adsorbents are functional and promising materials that can be used for the removal of pollutants such as Cr(VI) from aqueous media.en_US
dc.description.sponsorshipIstanbul Beykent University Research Fund [2020-21-BAP-10]en_US
dc.description.sponsorshipThis research was supported by the Istanbul Beykent University Research Fund through Project Number 2020-21-BAP-10.en_US
dc.identifier.doi10.55730/1300-0527.3629
dc.identifier.issn1300-0527
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85183180251en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.trdizinid1220855en_US
dc.identifier.urihttps://doi.org/10.55730/1300-0527.3629
dc.identifier.urihttps://search.trdizin.gov.tr/yayin/detay/1220855
dc.identifier.urihttps://hdl.handle.net/20.500.12662/3955
dc.identifier.volume27en_US
dc.identifier.wosWOS:001144116100016en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherTubitak Scientific & Technological Research Council Turkeyen_US
dc.relation.ispartofTurkish Journal Of Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAdsorptionen_US
dc.subjectcarbon nanocompositesen_US
dc.subjectgraphene nanoplateleten_US
dc.subjecthexavalent chromiumen_US
dc.subjectmagnetic adsorbentsen_US
dc.titleRemoval of toxic Cr(VI) from aqueous medium with effective magnetic carbon-based nanocompositesen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
TR-Dizin İndeksli Yayınlar Koleksiyonu