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dc.contributor.authorPraus, Petr
dc.contributor.authorMotáková, Marcela
dc.contributor.authorRitz, Michal
dc.date.accessioned2012-06-04T10:27:35Z
dc.date.available2012-06-04T10:27:35Z
dc.date.issued2012
dc.identifier.citationActa Geodynamica et Geomaterialia. 2012, vol. 9, no. 1, p. 63-70.cs
dc.identifier.issn1214-9705
dc.identifier.urihttp://hdl.handle.net/10084/90527
dc.description.abstractHg(II) ions dissolved in aqueous solutions were adsorbed by montmorillonite (MMT). The Hg(II) ion-exchange was strongly limited by the competition with H+ ions: the maximal amounts of adsorbed Hg(II) and H+ ions were 0.21 mmol g-1 and 1.10 mmol g-1, respectively. MMTs saturated with Hg(II) (Hg-MMTs) were examined by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and thermal analysis. Hg(II) ions, such as Hg2+ and [Hg(OH)+], along with H+ ones were mostly adsorbed on permanent sites (75 % of cation exchange capacity (CEC)) and also on pH dependent surface sites (25 % of CEC). While heating, Hg-MMTs was loosing their mass up to 700 °C as a result of the MMT dehydration and dehydroxylation accompanied by release of adsorbed Hg(II).cs
dc.format.extent963949 bytescs
dc.format.mimetypeapplication/pdfcs
dc.language.isoencs
dc.publisherAkademie věd České republiky, Ústav struktury a mechaniky hornincs
dc.relation.ispartofseriesActa Geodynamica et Geomaterialiacs
dc.relation.urihttps://www.irsm.cas.cz/materialy/acta_content/2012_01/6_Praus.pdfcs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/deed.en
dc.subjectHg(II)cs
dc.subjectmontmorillonitecs
dc.subjection exchangecs
dc.subjecthydrogen ionscs
dc.subjectsurface complexescs
dc.titleMontmorillonite ion exchanged by mercury (II)cs
dc.typearticlecs
dc.identifier.locationNení ve fondu ÚKcs
dc.rights.accessopenAccess
dc.type.versionpublishedVersion
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume9cs
dc.description.issue1cs
dc.description.lastpage70cs
dc.description.firstpage63cs
dc.identifier.wos000303781700006


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