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dc.contributor.authorCansever Erdoğan, Beyhan
dc.contributor.authorÜlkü, Semra
dc.date.accessioned2017-02-24T10:53:42Z
dc.date.available2017-02-24T10:53:42Z
dc.date.issued2011-12
dc.identifier.citationCansever Erdoǧan, B., and Ülkü, S. (2011). Ammonium sorption by Gördes clinoptilolite rich mineral specimen. Applied Clay Science, 54(3-4), 217-225. doi:10.1016/j.clay.2011.09.005en_US
dc.identifier.issn0169-1317
dc.identifier.urihttp://doi.org/10.1016/j.clay.2011.09.005
dc.identifier.urihttp://hdl.handle.net/11147/4903
dc.description.abstractExperimental and theoretical works were performed for the estimation of the effects of pH, initial concentration, agitation speed, particle size and temperature on the ammonium sorption by local clinoptilolite rich mineral specimen. The kinetic sorption data were analyzed using external mass transfer, intraparticle diffusion, pseudo first and second order kinetic models. Diffusion model results revealed that external film diffusion dominated at the very early stages of sorption process and then it was overcome by intraparticle diffusion. Pseudo-second order kinetic model correlated with the experimental data better than the pseudo first order kinetic model. Sorption isotherm model results indicated that the Langmuir isotherm fitted well to the experimental data. Thermodynamic parameters Gibbs energy change (δG), enthalpy change (δH) and entropy change (δS) were calculated. It was shown that the sorption process was exothermic and spontaneous. The value of the activation energy suggested that ammonium sorption by the clinoptilolite rich mineral specimen is likely due to physical interactions between the sorbent and the sorbate. Analysis of the cation exchange results revealed that ion exchange mechanism was not the only step which was effective in ammonium sorption.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.clay.2011.09.005en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAmmoniumen_US
dc.subjectClinoptilolite rich mineral specimenen_US
dc.subjectSorption kinetic modelen_US
dc.subjectThermodynamic parameteren_US
dc.titleAmmonium sorption by Gördes clinoptilolite rich mineral specimenen_US
dc.typearticleen_US
dc.contributor.iztechauthorCansever Erdoğan, Beyhan
dc.contributor.iztechauthorÜlkü, Semra
dc.relation.journalApplied Clay Scienceen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume54en_US
dc.identifier.issue3-4en_US
dc.identifier.startpage217en_US
dc.identifier.endpage225en_US
dc.identifier.wosWOS:000298513500005
dc.identifier.scopusSCOPUS:2-s2.0-82955249121
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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