An economic removal of Cu2+ and Cr3+ on the new adsorbents: Pumice and polyacrylonitrile/pumice composite

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dc.contributor.authorYavuz, Mustafa
dc.contributor.authorGode, Fethiye
dc.contributor.authorPehlivan, Erol
dc.contributor.authorOzmert, Sema
dc.contributor.authorSharma, Yogesh C.
dc.date.accessioned2020-03-26T17:26:23Z
dc.date.available2020-03-26T17:26:23Z
dc.date.issued2008
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this article, the adsorption of Cu2+ and Cr3+ onto pumice (Pmc) and polyacrylonitrile/pumice (PAn/Pmc) composite has been investigated by using a batch method at room temperature and their adsorption properties were compared. To highlight their application, selected information on pH, initial metal concentration and adsorption capacity of the adsorbents is presented. Depending on the characteristics of the individual adsorbents viz. surface modification, initial concentration of adsorbates, and pH, their adsorption capacities were found to vary. The time required for the removal of metal ions (100-500 mg/g) from aqueous solutions was about 6 h. The experimental data have been analyzed using the Langmuir and Freundlich isotherm models. The results of adsorption were fitted to the Langmuir models and coefficients indicated favorable adsorption of Cu2+ and Cr3+ on the adsorbents. Adsorption of Cu2+ and Cr3+ in the solutions was in following order: (PAn/(Pmc) composite> Pmc). The adsorption capacity of the adsorbents Pmc and (PAn/Pmc) were determined from the isotherms equations and were found to be 0.055 and 0.065 mmol/g for Cu2+ and 0.031 and 0.268 mmol/g for Cr3+, respectively. More than 80% of studied cations were removed by Pmc and 87% (PAn/Pmc), respectively, from aqueous solutions in single step. Effective removal of metal ions was demonstrated at pH values of 8.0. The mechanism for cations removal by the Pmc and (PAn/Pmc) composite includes complexation and sorption. The process is very efficient especially in case of low concentrations of pollutants in aqueous solutions, where common methods are either economically unfavorable or technically complicated. (C) 2007 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.cej.2007.04.030en_US
dc.identifier.endpage461en_US
dc.identifier.issn1385-8947en_US
dc.identifier.issn1873-3212en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage453en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.cej.2007.04.030
dc.identifier.urihttps://hdl.handle.net/20.500.12395/22196
dc.identifier.volume137en_US
dc.identifier.wosWOS:000254699200001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE SAen_US
dc.relation.ispartofCHEMICAL ENGINEERING JOURNALen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectpumiceen_US
dc.subjectadsorptionen_US
dc.subjectsorption isothermsen_US
dc.subjectpolyacrylonitrile/pumice compositeen_US
dc.subjectchromiumen_US
dc.subjectcopperen_US
dc.titleAn economic removal of Cu2+ and Cr3+ on the new adsorbents: Pumice and polyacrylonitrile/pumice compositeen_US
dc.typeArticleen_US

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