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Fizičkohemijske i strukturne osobine kiselinski modifikovanog zeolitskog tufa - heu-tip zeolit
Physicochemical and structural characteristics of HEU-type zeolitic tuff treated by hydrochloric acid
dc.creator | Radosavljević-Mihajlović, Ana | |
dc.creator | Dondur, Vera | |
dc.creator | Daković, Aleksandra | |
dc.creator | Lemić, Jovan | |
dc.creator | Tomašević-Čanović, Magdalena | |
dc.date.accessioned | 2023-04-21T10:49:47Z | |
dc.date.available | 2023-04-21T10:49:47Z | |
dc.date.issued | 2004 | |
dc.identifier.issn | 0352-5139 | |
dc.identifier.uri | https://ritnms.itnms.ac.rs/handle/123456789/63 | |
dc.description.abstract | Uzorci prirodnog zeolita (HEU-tipa) iz ležišta Novakovići – klinoptilolit- Ca (u blizini Prijedora, Bosna i Hercegovina), modifikovani su različitim koncentracijama hlorovodonične kiseline (od 10-3 M do 2 M), a u cilju određivanja njihovih fizičkohemijskih i strukturnih osobina. Za praćenje strukturnih promena u kiselinski modifikovanim probama, korišćene su sledeće metode: hemijska analiza, rendgen- difrakciona analiza praha, infracrvena spektroskopska analiza. Utvrđeno je prisustvo rastvornog jona aluminijuma pri koncentracijama većim od 10-1 M, što ukazuje na proces dealuminacije. Rezultati dobijeni rendgen-difrakcionom analizom praha modifikovanih proba ukazuju da pri većim koncentracijama od 1Mhlorovodonične kiseline, dolazi do značajnih strukturnih promena i smanjenja uređenosti kristalne strukture (60–70 %). Takođe, rezultati dobijeni infracrvenom spektroskopijom, potvrdili su delimičnu amorfizaciju zeolitskog tufa, koja se dešava kiselinskom modifikacijom pri velikim koncentracijama hlorovodonične kiseline (> 1 M). | sr |
dc.description.abstract | Samples of natural HEU-type zeolites – clinoptilolite-Ca, from the Novakovici deposit (near Prijedor, Bosnia and Herzegovina) were treated with the hydrochloric acid of various concentrations (from 10-3Mto 2M). Zeolitic tuffs before and after the acid treatment were examined using IR, XRPD, and chemical analyses. The changes in the crystal structure of acid treated samples showed a significant reduction in the crystallinity of zeolitic tuffs (60–70 %), which were effected by hydrochloric acid with concentrations of 1 M and above. | en |
dc.publisher | Srpsko hemijsko društvo, Beograd | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Journal of the Serbian Chemical Society | |
dc.subject | X-ray analysis | en |
dc.subject | Novakovici | en |
dc.subject | HEU-type zeolite | en |
dc.subject | acid modification | en |
dc.title | Fizičkohemijske i strukturne osobine kiselinski modifikovanog zeolitskog tufa - heu-tip zeolit | sr |
dc.title | Physicochemical and structural characteristics of HEU-type zeolitic tuff treated by hydrochloric acid | en |
dc.type | article | |
dc.rights.license | BY-NC-ND | |
dc.citation.epage | 281 | |
dc.citation.issue | 4 | |
dc.citation.other | 69(4): 273-281 | |
dc.citation.rank | M23 | |
dc.citation.spage | 273 | |
dc.citation.volume | 69 | |
dc.identifier.doi | 10.2298/JSC0404273R | |
dc.identifier.fulltext | https://ritnms.itnms.ac.rs/bitstream/id/324/60.pdf | |
dc.identifier.rcub | conv_490 | |
dc.identifier.scopus | 2-s2.0-2542503538 | |
dc.identifier.wos | 000220932200005 | |
dc.type.version | publishedVersion |