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dc.creatorMarinović, Sanja
dc.creatorAjduković, Marija
dc.creatorJović-Jovičić, Nataša
dc.creatorMudrinić, Tihana
dc.creatorNedić-Vasiljević, Bojana
dc.creatorBanković, Predrag
dc.creatorMilutinović Nikolić, Aleksandra
dc.date.accessioned2019-01-30T17:56:30Z
dc.date.available2019-01-30T17:56:30Z
dc.date.issued2017
dc.identifier.issn0352-5139
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2251
dc.description.abstractBentonites from three different deposits (Wyoming, TX, USA and Bogovina, Serbia) with similar cation exchange capacities were sodium enriched and tested as adsorbents for Sr2+ in aqueous solutions. X-Ray diffraction analysis confirmed successful Na-exchange. The textural properties of the bentonite samples were determined using low-temperature the nitrogen physisorption method. Significant differences in the textural properties between the different sodium enriched bentonites were found. Adsorption was investigated with respect to adsorbent dosage, pH, contact time and the initial concentration of Sr2+. The adsorption capacity increased with pH. In the pH range from 4.0-8.5, the amount of adsorbed Sr2+ was almost constant but 2-3 times smaller than at pH approximate to 11. Further experiments were performed at the unadjusted pH since extreme alkaline conditions are environmentally hostile and inapplicable in real systems. The adsorption capacity of all the investigated adsorbents toward Sr2+ was similar under the investigated conditions, regardless of significant differences in the specific surface areas. It was shown and confirmed by the Dubinin-Radushkevich model that the cation exchange mechanism was the dominant mechanism of Sr2+ adsorption. Their developed microporous structures contributed to the Sr2+ adsorption process. The adsorption kinetics obeyed the pseudo-second-order model. The isotherm data were best fitted with the Langmuir isotherm model.en
dc.publisherSerbian Chemical Society
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.rightsopenAccess
dc.sourceJournal of the Serbian Chemical Society
dc.subjectSr2+en
dc.subjectwater purificationen
dc.subjectNa-enriched claysen
dc.subjectcation exchange capacityen
dc.subjecttextural propertiesen
dc.titleAdsorption of strontium on different sodium-enriched bentonitesen
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractНедиц-Васиљевиц, Бојана М.; Милутиновић Николић, Aлександра; Банковић, Предраг; Aјдуковић, Марија; Мариновић, Сања; Мудринић, Тихана; Јовић-Јовичић, Наташа;
dc.citation.volume82
dc.citation.issue4
dc.citation.spage449
dc.citation.epage463
dc.citation.other82(4): 449-463
dc.citation.rankM23
dc.identifier.doi10.2298/JSC161010008M
dc.identifier.rcubConv_3748
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs//bitstream/id/8646/2249.pdf
dc.identifier.scopus2-s2.0-85019376703
dc.identifier.wos000404614300010
dc.type.versionpublishedVersion


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