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dc.creatorMilonjić, Slobodan K.
dc.creatorCerovic, Ljiljana S.
dc.creatorČokeša, Đuro
dc.creatorZec, Slavica
dc.date.accessioned2018-03-01T20:03:09Z
dc.date.available2018-03-01T20:03:09Z
dc.date.issued2007
dc.identifier.issn0021-9797 (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/3183
dc.description.abstractThe influence of the heat treatment on the crystal structure change of five (two laboratory prepared and three commercial) silica powders were investigated. Silicas were heat treated in the temperature range from 150 to 1300 degrees C in air. Also, the influence of the washing procedure with 0.01 mol/L HCl in order to desorb cations present as impurities in silica samples, was studied. The change of the amorphous into the crystal structure (alpha-cristobalite) takes place in the range 1050-1300 degrees C, depending on the chemical purity of silica samples. Points of zero charge, pH(pzc), of the same silica samples, ranging from 3.8 to 7.1, were also determined by batch equilibration method. It is shown that the desorption of cations from silica samples, i.e., increase in their purity, leads to a shift in pH(pzc) toward lower values. (c) 2006 Elsevier Inc. All rights reserved.en
dc.rightsrestrictedAccessen
dc.sourceJournal of Colloid and Interface Scienceen
dc.subjectsilicaen
dc.subjectpoint of zero chargeen
dc.subjectXRDen
dc.subjectICP-AESen
dc.subjectEDXRFen
dc.titleThe influence of cationic impurities in silica on its crystallization and point of zero chargeen
dc.typearticleen
dcterms.abstractЦеровиц, Љиљана С.; Милоњић Слободан; Чокеша Ђуро; Зец Славица;
dc.citation.volume309
dc.citation.issue1
dc.citation.spage155
dc.citation.epage159
dc.identifier.wos000245561200022
dc.identifier.doi10.1016/j.jcis.2006.12.033
dc.citation.rankM22
dc.identifier.pmid17258759
dc.identifier.scopus2-s2.0-33947386277


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