Fe(II) adsorption onto natural polymers derived from low-grade lignites

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dc.contributor.authorTarlan, Esra
dc.contributor.authorAhmetli, Gulnare
dc.date.accessioned2020-03-26T17:17:28Z
dc.date.available2020-03-26T17:17:28Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn comparison with conventional chemical treatment methods for Fe(II) ions, adsorption and ion exchange are considered more easily applicable and economical, depending on the material used. Polymeric rnaterials are the examples used in these commonly applied removal processes. In this study, the adsorption of Fe(II) ions from aqueous solutions onto two different natural polymers, insoluble humic acids (IHAs) extracted from low-grade lignites from Beysehir and Ermenek (in the central Anatolia region, Konya, Turkey), was investigated. The IHAs were synthesized through a series of acid-base reactions, and the obtained precipitates were chemically stable and had about 40% humic matter together with functional carboxyl and hydroxyl groups. The effects of the time and initial metal concentration on the effectiveness of the IHAs for Fe(II) adsorption were determined through batch experiments; the adsorption isotherms and capacities were calculated. The IHAs were effective, with capacities of 59 mg/g for the Beysehir IHA and 57 mg/g for the Ermenek IHA, for Fe removal under neutral pH conditions. The adsorption followed mainly a Freundlich isotherm for both IHAs, and the calculated adsorption rates were 0.86 for the Beysehir IHA and 0.81 for the Ermenek IHA. This indicated that the effectiveness of the Beysehir IHA was slightly higher than that of the Ermenek IHA. The results confirmed the real possibility of the practical application of IHAs for the separation of Fe(II) in aqueous systems. (C) 2007 Wiley Periodicals, Inc.en_US
dc.identifier.doi10.1002/app.26583en_US
dc.identifier.endpage3152en_US
dc.identifier.issn0021-8995en_US
dc.identifier.issn1097-4628en_US
dc.identifier.issue5en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage3146en_US
dc.identifier.urihttps://dx.doi.org/10.1002/app.26583
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21406
dc.identifier.volume105en_US
dc.identifier.wosWOS:000247943800085en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWILEY-BLACKWELLen_US
dc.relation.ispartofJOURNAL OF APPLIED POLYMER SCIENCEen_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.subjectFT-IRen_US
dc.subjectmetal-polymer complexesen_US
dc.subjectsynthesisen_US
dc.subjectwasteen_US
dc.titleFe(II) adsorption onto natural polymers derived from low-grade lignitesen_US
dc.typeArticleen_US

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