Thermodynamic parameters of Cs+ sorption on natural clays

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dc.citation.epage120
dc.citation.issueNumber1
dc.citation.spage115
dc.citation.volumeNumber253
dc.contributor.authorShahwan, T.
dc.contributor.authorErten, H. N.
dc.date.accessioned2016-02-08T10:32:34Z
dc.date.available2016-02-08T10:32:34Z
dc.date.issued2002
dc.departmentDepartment of Chemistry
dc.description.abstractThe sorption behavior of Cs+ on kaolinite, chlorite-illite, and bentonite clays as a function of time, cation concentration, and temperature was studied using the radiotracer method. Sorption data were well represented by Freundlich and Dubinin-Radushkevich type isotherms. Bentonite was found to have the highest sorption capacity and the highest exchange affinity to Cs+. In all three cases Cs+ sorption was found to be exothermic with ΔH° (kJ/mol) -13, -8, -19 and ΔS° (J/mol·K) -15, 31, and -3 for kaolinite, chlorite-illite, and bentonite, respectively. Negative ΔG° values were obtained in all cases, indicating the spontaneity of sorption. The magnitudes of ΔG° suggest that ion exchange is the primary sorption mechanism.
dc.identifier.doi10.1023/A:1015824819940
dc.identifier.issn0236-5731
dc.identifier.urihttp://hdl.handle.net/11693/24663
dc.language.isoEnglish
dc.publisherAkademiai Kiado Rt.
dc.relation.isversionofhttp://dx.doi.org/10.1023/A:1015824819940
dc.source.titleJournal of Radioanalytical and Nuclear Chemistry
dc.subjectAluminum silicate
dc.subjectBentonite
dc.subjectCesium ion
dc.subjectSodium chlorite
dc.subjectTracer
dc.subjectClay
dc.subjectConcentration (parameters)
dc.subjectIon exchange
dc.subjectMethodology
dc.subjectRadiation absorption
dc.subjectTemperature dependence
dc.subjectThermal analysis
dc.subjectThermodynamics
dc.titleThermodynamic parameters of Cs+ sorption on natural clays
dc.typeArticle

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