Removal of some heavy metal cations from aqueous solution by adsorption onto natural kaolin

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dc.authorid0000-0001-8776-9338en_US
dc.authorid0000-0003-0938-7697en_US
dc.authorid0000-0002-3537-6505en_US
dc.authorid0000-0003-2101-1334en_US
dc.contributor.authorCeylan, Hasan
dc.contributor.authorŞahan, Tekin
dc.contributor.authorGürkan, Ramazan
dc.contributor.authorKubilay, Şenol
dc.contributor.authorCeylan, Hasan
dc.date.accessioned2024-07-12T20:35:57Z
dc.date.available2024-07-12T20:35:57Z
dc.date.issued2005en_US
dc.departmentFakülteler, Eğitim Fakültesi, İlköğretim Matematik Öğretmenliği Bölümüen_US
dc.description.abstractThe adsorption removal of some heavy metal cations such as Cu(II), Zn(II) and Co(II) from aqueous solution onto kaolin has been studied using the batch method with initial metal ion concentrations within the range 15–70 mg/l. The percentage adsorption and equilibrium concentrations were determined by means of atomic absorption flame photometry as a function of adsorbate concentration, pH and temperature. Ion-exchange studies showed that over the complete concentration range studied the adsorption ratios for metal cations adsorbed onto kaolin correlated with the linear forms of the Langmuir, Freundlich and Dubinin–Kaganer–Radushkevich (DKR) adsorption isotherms. The cationexchange capacity of kaolin towards each metal ion studied was evaluated. It was found that the adsorption phenomena depended on the charge density and diameter of the hydrated ion. The equilibrium studies demonstrated that the selectivity of the ions followed the sequence Zn(II) > Cu(II) > Co(II) at pH 7.0. Calculation of thermodynamic parameters such as the standard enthalpy (?H0), Gibbs free energy (?G0) and entropy (?S0) showed that the adsorption of the heavy metal ions studied onto kaolin was an endothermic process which was favoured at higher temperatures. These results show that natural kaolin has a considerable potential for the removal of heavy metal cationic species from aqueous solution and wastewater.en_US
dc.identifier.citationCeylan, H., Şahan, T., Gürkan, R. ve Kubilay, Ş. (2005). Removal of some heavy metal cations from aqueous solution by adsorption onto natural kaolin. Adsorption Science & Technology. 23(7), s. 519-534.en_US
dc.identifier.endpage534en_US
dc.identifier.issn2048-4038
dc.identifier.issue7en_US
dc.identifier.startpage519en_US
dc.identifier.urihttps://journals.sagepub.com/doi/10.1260/026361705775212475
dc.identifier.urihttps://hdl.handle.net/20.500.12415/993
dc.identifier.volume23en_US
dc.language.isoenen_US
dc.publisherSageJournalsen_US
dc.relation.ispartofAdsorption Science & Technologyen_US
dc.relation.isversionof10.1260/026361705775212475en_US
dc.relation.publicationcategoryUluslararası Hakemli Dergide Makale - Kurum Öğretim Elemanıen_US
dc.rightsCC0 1.0 Universal*
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.snmzKY00101
dc.titleRemoval of some heavy metal cations from aqueous solution by adsorption onto natural kaolinen_US
dc.typeArticle
dspace.entity.typePublication

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