Fabrication of novel chitosan-humic acid-graphene oxide composite to improve adsorption properties for Cr(VI)

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dc.contributor.authorParlayici, Serife
dc.contributor.authorAvci, Ahmet
dc.contributor.authorPehlivan, Erol
dc.date.accessioned2024-02-23T13:59:56Z
dc.date.available2024-02-23T13:59:56Z
dc.date.issued2019
dc.departmentNEÜen_US
dc.description.abstractA novel chitosan-humic acid-graphene oxide (Cts-HA-GO) composite was produced and tested to remove hexavalent chromium (Cr(VI)) during the adsorption process. The percentage adsorption was 85.28% by using 200 ppm Cr(VI) and 2 g/L composite. Four hours of contact time was enough to remove Cr(VI) from the aquatic medium. The extent of adsorption of Cr(VI) on the surface of Cts-HA-GO composite was examined on the basis of increasing quantity of the composite. The functional group characterization and morphology of composite was characterized using scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. After reaching the equilibrium, the residual concentration of the Cr(VI) solution was measured with an UV-visible spectrophotometer. The results showed that the adsorption behaviour was in accordance with the Langmuir isotherm model, and the maximum adsorption capacity of Cr(VI) determined by using this model was 83.64 mg/g at the pH of 2. A pseudo-second-order model equation has justified the equilibrium between Cr(VI) and the composite for the kinetic studies.en_US
dc.identifier.doi10.1007/s12517-019-4828-8
dc.identifier.issn1866-7511
dc.identifier.issn1866-7538
dc.identifier.issue19en_US
dc.identifier.scopus2-s2.0-85073454394en_US
dc.identifier.urihttps://doi.org/10.1007/s12517-019-4828-8
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11379
dc.identifier.volume12en_US
dc.identifier.wosWOS:000500583900003en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofArabian Journal Of Geosciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHumic Aciden_US
dc.subjectGraphene Oxideen_US
dc.subjectChitosanen_US
dc.subjectCr(Vi) Removalen_US
dc.subjectKineticsen_US
dc.subjectCompositeen_US
dc.titleFabrication of novel chitosan-humic acid-graphene oxide composite to improve adsorption properties for Cr(VI)en_US
dc.typeArticleen_US

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