Biosorption of uranium (VI) and thorium (IV) onto Ulva gigantea (Kutzing) bliding: discussion of adsorption isotherms, kinetics and thermodynamic

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dc.authorid0000-0003-2136-6928
dc.authorid0000-0002-6583-2719
dc.authorid0000-0001-5036-306X
dc.contributor.authorBozkurt, Serap Seyhan
dc.contributor.authorMolu, Zehra Bekci
dc.contributor.authorCavas, Levent
dc.contributor.authorMerdivan, Melek
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2011
dc.departmentNiğde ÖHÜ
dc.description.abstractUlva gigantea (Kutzing) bliding (UGB) obtained from sea inlet of Izmir-Turkey has been studied as a biosorbent for removal of radioactive metals from water. In this study, unmodified UGB and modified UGB with glutaraldehyde (GUGB) characterized by FTIR spectroscopy were used as biosorbents for removal of U(VI) and Th(IV) ions from aqueous solution. Adsorption experiments performed under batch process with initial pH, contact time, adsorbent mass and temperature as variables. In order to determine the adsorption characteristics, Langmuir, Freundlich and Dubinin-Raduschkevich adsorption isotherms were applied to the adsorption data. Adsorption experiments showed that the adsorption isotherms correlated well with the Freundlich model. The sorption followed pseudo-second-order kinetics. The thermodynamic parameters such as variations of Delta HA degrees, Delta GA degrees and Delta SA degrees were estimated as a function of temperature. The thermodynamics of the adsorption of U(VI) and Th(IV) onto UGB and GUGB indicates that the spontaneous and exothermic nature of the process. The results showed that UGB and GUGB were potential for application in removal of U(VI) and Th(IV) from aqueous solution.
dc.identifier.doi10.1007/s10967-011-1010-5
dc.identifier.endpage874
dc.identifier.issn0236-5731
dc.identifier.issue3
dc.identifier.scopus2-s2.0-79955681482
dc.identifier.scopusqualityQ2
dc.identifier.startpage867
dc.identifier.urihttps://dx.doi.org/10.1007/s10967-011-1010-5
dc.identifier.urihttps://hdl.handle.net/11480/4723
dc.identifier.volume288
dc.identifier.wosWOS:000290040000032
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherSPRINGER
dc.relation.ispartofJOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectUranium
dc.subjectThorium
dc.subjectBioadsorbent
dc.subjectAdsorption
dc.subjectUlva sp.
dc.titleBiosorption of uranium (VI) and thorium (IV) onto Ulva gigantea (Kutzing) bliding: discussion of adsorption isotherms, kinetics and thermodynamic
dc.typeArticle

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