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  5. Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ
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Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/9301
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dc.contributor.authorBelessi, V. C.en
dc.contributor.authorLambropoulou, D.en
dc.contributor.authorKonstantinou, I.en
dc.contributor.authorKatsoulidis, A.en
dc.contributor.authorPomonis, P.en
dc.contributor.authorPetridis, D.en
dc.contributor.authorAlbanis, T.en
dc.date.accessioned2015-11-24T16:48:18Z-
dc.date.available2015-11-24T16:48:18Z-
dc.identifier.issn0926-3373-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/9301-
dc.rightsDefault Licence-
dc.subjecttio2 photocatalystsen
dc.subjectnanocompositesen
dc.subjectclaysen
dc.subjectorganic pollutantsen
dc.subjectselective catalytic-reductionen
dc.subjecttitania-pillared clayen
dc.subjecttio2en
dc.subjectaciden
dc.subjectmontmorilloniteen
dc.subjectnanoparticlesen
dc.subjectwateren
dc.subjecthydrolysisen
dc.subjectmechanismsen
dc.subjectpollutantsen
dc.titleStructure and photocatalytic performance of TiO2/clay nanocomposites for the degradation of dimethachloren
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1016/j.apcatb.2006.12.011-
heal.identifier.secondary<Go to ISI>://000246539900009-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0926337306005133/1-s2.0-S0926337306005133-main.pdf?_tid=1edc843aaa9752aeeef2568039636456&acdnat=1333022690_ab1f2c7928bca5bf3be8f18377100449-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.publicationDate2007-
heal.abstractIn the present study TiO2/Clay composites were synthesized by dispersion of TiO2 on the surfaces of a natural montmorillonite and a synthetic hectorite in order to increase the sorption ability of TiO2 and therefore its photocatalytic action. Six materials with different loading in TiO2 (15, 30 and 55 wt%) were prepared and characterized by several analytical techniques including XRD, BET and SEM analysis. The synthetic procedure allows the development of delaminated layers for hectorite-TiO2 samples, while in the case of montmorillonite-TiO2 composites we have the formation of a more lamellar-like aggregation. It was found that, the greater the percentage of TiO2, the greater the pore volume and the specific surface area of the montmorillonite-TiO2 samples. On the contrary, in the case of hectorite-TiO2 samples, as the content of TiO2 increases, the surface area and pore volume decreases. The photocatalytic efficiency of the nanocomposite catalysts was evaluated using a chloroacetanilide herbicide (dimethachlor) in water as model compound. The primary degradation of dimethachlor followed pseudo-first-order kinetics according to the Langmuir-Hinshelwood model. All supported catalysts exhibit good photodegradation efficiency and their overall removal efficiency per mass of TiO2 was better than that of bare TiO2 produced by the sol-gel method. In conclusion, together with their good sedimentation ability the composite materials could be considered as a promising alternative for the removal of organic water contaminants. (c) 2007 Elsevier B.V. All rights reserved.en
heal.journalNameApplied Catalysis B-Environmentalen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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