Mineralogical and physico-chemical properties of Heu-type zeolitic rocks SE of Ankara, central Turkey

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dc.contributor.authorKarakaya, Muazzez Celik
dc.contributor.authorKarakaya, Necati
dc.contributor.authorYavuz, Fuat
dc.date.accessioned2020-03-26T19:42:05Z
dc.date.available2020-03-26T19:42:05Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThis study focused on the mineralogical and physico-chemical properties of heulandite/clinoptilolite (Heu/Cpt)-rich zeolitic tuffs SE of Ankara (Turkey) and evaluated their potential for use as adsorbents. The main Heu/Cpt minerals correspond to the intermediate type and the Cpt-type of the heulandite series. Minor chabazite, erionite and rarely analcime and accessory feldspars, mica, smectite, and quartz were also detected. Three types of Heu were recognized according to their thermal behaviour. Cpt (type-III Heu) was thermally stable at 600 degrees C, whereas type-I Heu collapsed and type-II Heu partially collapsed. The Si/Al ratios of the Hul/Cpt ranged from 3.54 to 5.03, the G parameter (G = Ca/Al + 0.115* Al) varied between 0.78 and 1.85 and Al + Fe3+ varied between 6.27 and 8.00. The Na, K and Ca contents of Heu/Cpt varied widely and the Heu had an intermediate composition between types II and III. The Mg + Ca content is greater than the Na + K content in Heu-type II and smaller in Heu-type III zeolites. The BET surface area and the pore-size of the samples varied between 10.15 and 194.27 m(2)/g, and between 1.41 and 12.42 nm, respectively. The N-2 adsorption and desorption isotherms were comparable, but the adsorption/desorption capacity is greater in type III than in type II Heu zeolites. The cation exchange capacities of the Heu/Cpt-rich samples ranged from 185 to 280 meq/100 g.en_US
dc.description.sponsorshipTUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [109Y301]; Selcuk University Scientific Research projects support programSelcuk University [BAP 10401052]en_US
dc.description.sponsorshipThe present investigation was made possible through financial support by the TUBITAK 109Y301 project and the Selcuk University Scientific Research projects support program BAP 10401052.en_US
dc.identifier.doi10.1180/claymin.2017.052.2.02en_US
dc.identifier.endpage202en_US
dc.identifier.issn0009-8558en_US
dc.identifier.issn1471-8030en_US
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage191en_US
dc.identifier.urihttps://dx.doi.org/10.1180/claymin.2017.052.2.02
dc.identifier.urihttps://hdl.handle.net/20.500.12395/35295
dc.identifier.volume52en_US
dc.identifier.wosWOS:000411902500002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMINERALOGICAL SOCen_US
dc.relation.ispartofCLAY MINERALSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectAdsorptionen_US
dc.subjectCECen_US
dc.subjectclinoptiloliteen_US
dc.subjectdesorptionen_US
dc.subjectheulanditeen_US
dc.subjectAnkaraen_US
dc.subjectTurkeyen_US
dc.subjectzeoliteen_US
dc.titleMineralogical and physico-chemical properties of Heu-type zeolitic rocks SE of Ankara, central Turkeyen_US
dc.typeArticleen_US

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