Synthesis and characterization of low dimensional ZnS- and PbS-semiconductor particles on a montmorillonite template

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dc.contributor.authorJankovic, L.en
dc.contributor.authorDimos, K.en
dc.contributor.authorBujdak, J.en
dc.contributor.authorKoutselas, I.en
dc.contributor.authorMadejova, J.en
dc.contributor.authorGournis, D.en
dc.contributor.authorKarakassides, M. A.en
dc.contributor.authorKomadel, P.en
dc.date.accessioned2015-11-24T17:39:05Z
dc.date.available2015-11-24T17:39:05Z
dc.identifier.issn1463-9076-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/14585
dc.rightsDefault Licence-
dc.subjectsociety source claysen
dc.subjectcadmium-sulfideen
dc.subjectmagnetic-propertiesen
dc.subjectoptical-propertiesen
dc.subjectpillared claysen
dc.subjectmetal sulfidesen
dc.subjectlayered claysen
dc.subjectzinc-sulfideen
dc.subjectbase-lineen
dc.subjectcdsen
dc.titleSynthesis and characterization of low dimensional ZnS- and PbS-semiconductor particles on a montmorillonite templateen
heal.abstractLow dimensional metal sulfide particles have been prepared in the interlayers of montmorillonites via reactions of the metal ion-exchanged clay minerals in aqueous dispersions with gaseous hydrogen sulfide. The montmorillonites separated from the Wyoming (USA) and Jelsovy Potok (Slovakia) bentonites were saturated with Pb(2+) or Zn(2+). In the final nanohybrids, the smectite mineral can be incorporated with metal sulfide pillars and/or nanoparticles. Properties of the prepared materials were investigated by various analytical techniques. The formation of metal sulfide nanoparticles in the interlayer galleries was indicated by X-ray diffraction and energy dispersive X-ray analysis. About 50% of Pb(2+) or Zn(2+) present in montmorillonite has formed metal sulfide semiconducting units. Infrared spectroscopy and thermogravimetric analysis were used for characterization of starting materials and products. Ultraviolet-visible absorption and photoluminescence spectroscopies confirmed that final composite systems acquired the optical properties of the incorporated quantum low dimensional systems exhibiting blue shift of the energy gap and higher oscillator strength excitonic peaks. Larger amounts of metal sulfide nanoparticles were formed in montmorillonite Jelsovy Potok probably as a consequence of its higher cation exchange capacity.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDoi 10.1039/C002891f-
heal.identifier.secondary<Go to ISI>://000283262400042-
heal.journalNamePhysical Chemistry Chemical Physicsen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2010-
heal.publisherRoyal Society of Chemistryen
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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