Uptake of metal ions on humic acids

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dc.contributor.authorPehlivan, E.
dc.contributor.authorArslan, G.
dc.date.accessioned2020-03-26T17:04:45Z
dc.date.available2020-03-26T17:04:45Z
dc.date.issued2006
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe kinetics, the sorption capacities, pH and temperature dependence of sorption of humic acids (HAs) of Turkish brown coals with respect to Zn(II), Cu(II), Ni(II), Co(II) and Pb(II) ions were investigated, and the roles of the carboxylic and phenolic groups in the adsorption of metals ion on HAs were searched in this work. These metal ions are able to form complex compounds with carboxylic and phenolic groups of HAs. Adsorption equilibrium was achieved in between 50 and 60 min for all studied cations. HAs extracted from different brown coals have been characterized by chemical and physical methods. The chemical properties of HAs showed differences depending on the source from which they were obtained. The sorption of metals on the surface of HAs depends strongly on the pH, and sorption decreases with decreasing pH. Maximum removal of metal ions was demonstrated at pH values of 4.1-5.0. The Langmuir adsorption isotherm was used to describe observed sorption phenomena. The Delta G(0) became negative as the temperature increased, and so the equilibrium constant decreased slightly. The investigation proved that the HAs are suitable materials for the studied heavy metal ion removal from aqueous solution and could be considered as potential material for purification of effluent polluted with toxic metal ions.en_US
dc.identifier.doi10.1080/009083190910451en_US
dc.identifier.endpage1112en_US
dc.identifier.issn1556-7036en_US
dc.identifier.issue12en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1099en_US
dc.identifier.urihttps://dx.doi.org/10.1080/009083190910451
dc.identifier.urihttps://hdl.handle.net/20.500.12395/20765
dc.identifier.volume28en_US
dc.identifier.wosWOS:000239323600002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTAYLOR & FRANCIS INCen_US
dc.relation.ispartofENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectadsorptionen_US
dc.subjectatomic absorptionen_US
dc.subjecthumic aciden_US
dc.subjectmetal-binding capacityen_US
dc.subjectmetal ionsen_US
dc.titleUptake of metal ions on humic acidsen_US
dc.typeArticleen_US

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