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dc.contributor.authorShahwan, Talal
dc.contributor.authorZünbül, B.
dc.contributor.authorAkar, Dilek
dc.date.accessioned2016-08-02T06:58:35Z
dc.date.available2016-08-02T06:58:35Z
dc.date.issued2005
dc.identifier.citationShahwan, T., Zünbül, B., and Akar, D. (2005). Study of the scavenging behavior and structural changes accompanying the interaction of aqueous Pb2+ and Sr2+ ions with calcite. Geochemical Journal, 39(4), 317-326. doi:10.2343/geochemj.39.317en_US
dc.identifier.issn1880-5973
dc.identifier.urihttp://doi.org/10.2343/geochemj.39.317
dc.identifier.urihttp://hdl.handle.net/11147/2027
dc.description.abstractThe uptake of Pb2+ and Sr2+ ions from aqueous solutions by calcite was studied at various initial concentrations and pH conditions using the batch method under ambient conditions. XRPD, SEM/ EDS, AAS/AES, and DRIFT techniques were used in characterizing the sorption process. The results indicated that the retention mechanism of Ph2+ and Sr2+ ions ranged from ion incorporation to precipitate overgrowth (cerussite, hydrocerussite for Pb, strontianite for Sr) depending on the concentration and pH conditions. The calcite structure seemed to be entirely vanishing upon formation of cerussite and hydrocerussite while partial dissolution of calcite occurred upon strontianite formation. The formation of precipitates showed rapid kinetics, and equilibrium seemed to be reached within about an hour from the start of mixing. SEM analysis showed that cerussite, hydrocerussite, and strontianite had columnar prismatic-like, tabular hexagonal-like, and needle-like morphologies. Based on a nine-month observation period, dry samples of hydrocerussite seemed to show more morphological stability than cerussite. EDS analysis indicated that Pb2+ sorption is more favored than that of Sr2+, particularly in the phase of precipitate overgrowth. DRIFT analysis indicated a change in the symmetry of the carbonate groups in calcite matrix upon uptake of Pb2+ and Sr2+ cations.en_US
dc.language.isoengen_US
dc.publisherThe Geochemical Society of Japanen_US
dc.relation.isversionof10.2343/geochemj.39.317en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCalciteen_US
dc.subjectCerussiteen_US
dc.subjectHydrocerussiteen_US
dc.subjectStrontianiteen_US
dc.titleStudy of the scavenging behavior and structural changes accompanying the interaction of aqueous Pb2+ and Sr2+ ions with calciteen_US
dc.typearticleen_US
dc.contributor.iztechauthorShahwan, Talal
dc.contributor.iztechauthorZünbül, B.
dc.contributor.iztechauthorAkar, Dilek
dc.relation.journalGeochemical Journalen_US
dc.contributor.departmentIzmir Institute of Technology. Chemistryen_US
dc.identifier.volume39en_US
dc.identifier.issue4en_US
dc.identifier.startpage317en_US
dc.identifier.endpage326en_US
dc.identifier.wosWOS:000230862700003
dc.identifier.scopusSCOPUS:2-s2.0-23044438505
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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