Equilibrium and kinetic studies for the sorption of 3-methoxybenzaldehyde on activated kaolinites

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dc.authorid0000-0002-6756-4973en_US
dc.authorid0000-0001-9331-775Xen_US
dc.authorid0000-0003-2428-3474en_US
dc.authorid0000-0003-2101-1334en_US
dc.contributor.authorKoyuncu, Hülya
dc.contributor.authorKul, Ali Rıza
dc.contributor.authorYıldız, Nuray
dc.contributor.authorÇalımlı, Ayla
dc.contributor.authorCeylan, Hasan
dc.contributor.authorCeylan, Hasan
dc.date.accessioned2024-07-12T20:36:01Z
dc.date.available2024-07-12T20:36:01Z
dc.date.issued2007en_US
dc.departmentFakülteler, Eğitim Fakültesi, İlköğretim Matematik Öğretmenliği Bölümüen_US
dc.description.abstractThe sorption of 3-methoxybenzaldehyde on activated kaolinites has been investigated at different temperatures. Two types of activation tests were performed. The sorption equilibrium was studied by sorption isotherms in the temperature range 303–333K for natural (untreated), thermally and acid activated kaolinites. It was shown that the isotherm shapes were not affected by temperature and activation types of kaolinite. The absorbance data at 312 nm were fitted reasonably well with the Langmuir and Freundlich isotherm models and the model parameters were determined for different temperatures. Thermodynamic quantities such as Gibbs free energy ( G), the enthalpy ( H) and the entropy change of sorption ( S) were determined for natural, thermally and acid activated kaolinites. It was shown that the sorption processes were an endothermic reactions, controlled by physical mechanisms and spontaneously. Adsorption capacity of acid activated kaolinite for 3-methoxybenzaldehyde was higher compared to that of natural and thermally activated kaolinites at various temperatures. The adsorption and desorption rate constants (ka and kd) were obtained separately by applying a geometric approach to the first order Langmuir model. This method provided good conformity between the K from Langmuir parameters and Kgeo (ka/kd) from geometric approach.en_US
dc.identifier.citationKoyuncu, H., Kul, A. R., Yıldız, N., Çalımlı, A. ve Ceylan, H. (2007). Equilibrium and kinetic studies for the sorption of 3-methoxybenzaldehyde on activated kaolinites. Journal of Hazardous Materials. 141(1), s. 128-139.en_US
dc.identifier.endpage139en_US
dc.identifier.issn0304-3894
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage128en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0304389406007643
dc.identifier.urihttps://hdl.handle.net/20.500.12415/1005
dc.identifier.volume141en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Hazardous Materialsen_US
dc.relation.isversionof10.1016/j.jhazmat.2006.06.101en_US
dc.relation.publicationcategoryUluslararası Editör Denetimli Dergide Makaleen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKY01909
dc.subject3-Methoxybenzaldehydeen_US
dc.subjectKaoliniteen_US
dc.subjectActivationen_US
dc.subjectSorption kineticsen_US
dc.subjectEquilibriumen_US
dc.titleEquilibrium and kinetic studies for the sorption of 3-methoxybenzaldehyde on activated kaolinitesen_US
dc.typeArticle
dspace.entity.typePublication

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