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dc.creatorNenadović, Snežana S.
dc.creatorKljajević, Ljiljana M.
dc.creatorSeslak, Bojan Z.
dc.creatorObradović, Nina
dc.creatorVukanac, Ivana S.
dc.creatorPavlović, Vladimir
dc.date.accessioned2020-12-17T20:57:38Z
dc.date.available2020-12-17T20:57:38Z
dc.date.issued2014
dc.identifier.issn1451-3994
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/3426
dc.description.abstractThe aim of this study was to investigate the Cs+ ions sorption on natural minerals clinoptilolite. The analysis of clinoptilolite and clinoptilolite with adsorbed Cs+ ion was conducted by X-ray diffraction, scanning electron microscopy, X-ray fluorescence, and gamma spectrometry. The specific activity of naturally occurring radionuclides in clinoptilolite was determined by gamma spectrometry by using the HPGe semiconductor detector. Obtained activity concentrations ranged from 49 Bq/kg to 810 Bq/kg for K-40, 5.7 Bq/kg to 10 Bq/kg for U-238, 5.8 Bq/kg to 70 Bq/kg for Th-232(Ac-228), and the presence of artificial radionuclides was not detected (Cs-137 lt 0.02 Bq/kg). The study of the thermal decomposition of raw clinoptilolite and Cs adsorbed clinoptilolite by differential thermal analysis is presented in this paper. The activation energy of the reaction phase transformation of raw clinoptilolite is 156.7 kJ/mol, while Cs adsorbed clinoptilolite is 121.7 kJ/mol. The lower value of activation energy reaction of the phase transformation Cs adsorbed clinoptilolite indicates that Cs which is adsorbed destabilizes the crystal structure of clinoptilolite and thus facilitates the transition to the amorphous state.en
dc.publisherUniverzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceNuclear Technology & Radiation Protection
dc.subjectclinoptiloliteen
dc.subjectadsorptionen
dc.subjectcesiumen
dc.subjectnatural radioactivityen
dc.subjectphase transformationen
dc.subjectdifferential thermal analysisen
dc.titleCesium removal from aqueous solution by natural mineral clinoptiloliteen
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage141
dc.citation.issue2
dc.citation.other29(2): 135-141
dc.citation.rankM23
dc.citation.spage135
dc.citation.volume29
dc.identifier.doi10.2298/NTRP1402135N
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/2041/3423.pdf
dc.identifier.scopus2-s2.0-84905233612
dc.identifier.wos000339368400007
dc.type.versionpublishedVersion


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Приказ основних података о документу