Preparation and characterization of Cr- and Fe-pillared bentonites by using CrCl3, FeCl3, Cr(acaC)3 and Fe(acac)3 as precursors

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dc.contributor.authorYurdakoc, Mueruevvet
dc.contributor.authorAkcay, Mehmet
dc.contributor.authorTonbul, Yalcin
dc.contributor.authorOk, Fatih
dc.contributor.authorYurdakoc, Kadir
dc.date.accessioned2024-04-24T16:15:31Z
dc.date.available2024-04-24T16:15:31Z
dc.date.issued2008
dc.departmentDicle Üniversitesien_US
dc.description.abstractFour pillared bentonites (Cr-PILB, Cr(acaC)(3)-PILB, Fe-PILB and Fe(acaC)(3)-PILB were prepared and characterized by X-ray diffraction (XRD), nitrogen sorption measurements and thermogravimetric (TG) analysis. The surface acidities of the samples and their structures were also investigated in the gas phase adsorption data of pyridine by the aid of FT-IR spectroscopic techniques. The XRD data and FT-IR spectra of the samples reflected mainly the structure of bentonite. The nitrogen adsorption-desorption isotherms of the samples were Type II shaped and showed in general mesoporous structures with pore openings of 4 nm. Two steps mass losses were observed in the TGA thermograms of B, Cr-PILB and Fe-PILB, while three steps mass losses were detected in the case of Cr(acaC)(3)-PILB and Fe(acaC)(3)-PILB. IR study by the adsorption of pyridine on the samples showed both Lewis and Bronsted acid sites on their surfaces. (C) 2007 Elsevier Inc. All rights reserved.en_US
dc.identifier.doi10.1016/j.micromeso.2007.07.032
dc.identifier.endpage218en_US
dc.identifier.issn1387-1811
dc.identifier.issn1873-3093
dc.identifier.issue1-3en_US
dc.identifier.scopus2-s2.0-41749121293
dc.identifier.scopusqualityQ1
dc.identifier.startpage211en_US
dc.identifier.urihttps://doi.org/10.1016/j.micromeso.2007.07.032
dc.identifier.urihttps://hdl.handle.net/11468/15835
dc.identifier.volume111en_US
dc.identifier.wosWOS:000255847100030
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofMicroporous and Mesoporous Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBentoniteen_US
dc.subjectPillared Bentoniteen_US
dc.subjectCr-Pillared Bentoniteen_US
dc.subjectFe-Pillared Bentoniteen_US
dc.subjectSurface Acidityen_US
dc.subjectCr(Acac)(3)en_US
dc.subjectFe(Acac)(3)en_US
dc.titlePreparation and characterization of Cr- and Fe-pillared bentonites by using CrCl3, FeCl3, Cr(acaC)3 and Fe(acac)3 as precursorsen_US
dc.titlePreparation and characterization of Cr- and Fe-pillared bentonites by using CrCl3, FeCl3, Cr(acaC)3 and Fe(acac)3 as precursors
dc.typeArticleen_US

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