Composite hydroxyapatite/TiO2 materials for photocatalytic oxidation of NOx

Απλή σελίδα τεκμηρίου
dc.contributor.authorGiannakopoulou, T.en
dc.contributor.authorTodorova, N.en
dc.contributor.authorRomanos, G.en
dc.contributor.authorVaimakis, T.en
dc.contributor.authorDillert, R.en
dc.contributor.authorBahnemann, D.en
dc.contributor.authorTrapalis, C.en
dc.date.accessioned2015-11-24T16:54:26Z
dc.date.available2015-11-24T16:54:26Z
dc.identifier.issn0921-5107-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/10152
dc.rightsDefault Licence-
dc.subjectcomposite materialsen
dc.subjectphotocatalysisen
dc.subjectoxidationen
dc.subjectsol-gel processesen
dc.subjectsemiconductorsen
dc.subjectnitrogen-oxidesen
dc.subjecttitanium-dioxideen
dc.subjecttio2en
dc.subjectdegradationen
dc.subjectdyeen
dc.subjectairen
dc.subjectmicrostructuresen
dc.subjectimmobilizationen
dc.subjectnanoparticlesen
dc.subjectpurificationen
dc.titleComposite hydroxyapatite/TiO2 materials for photocatalytic oxidation of NOxen
heal.abstractHydroxyapatite/TiO2 composite photocatalysts were obtained from sol-gel prepared TiO2 and commercial hydroxyapatite (HA) powders. Composites with different HA/TiO2 ratio were studied to assess the influence of HA on the morphology and the photocatalytic behavior of the materials. Morphological SEM analysis revealed that the presence of HA diminishes the aggregation of TiO2 particles and leads to their higher dispersion in the composites that was confirmed by the N-2 adsorption-desorption isotherms and Barret-Joyner-Halenda analysis. The photocatalytic activity of the prepared catalysts was examined by monitoring photocatalytic oxidation of NOx model gases over catalysts under UV illumination. The NOx oxidation over the composite catalysts was improved in comparison with pure TiO2 powder. Moreover, the decrease of the TiO2 content, which is the photocatalytically active component in the composites, resulted in enhanced NOx removal. Maximum activity was recorded for composites with HA/TiO2 ratios 1 and 2 that was related to improved TiO2 dispersion and NO2 trapping by the composite materials. (C) 2012 Elsevier B.V. All rights reserved.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1016/j.mseb.2012.05.014-
heal.identifier.secondary<Go to ISI>://000309313000006-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0921510712003157/1-s2.0-S0921510712003157-main.pdf?_tid=37b785f2-5356-11e3-b4df-00000aacb360&acdnat=1385111731_343158e5f1110ecba76755fbcfaff754-
heal.journalNameMaterials Science and Engineering B-Advanced Functional Solid-State Materialsen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2012-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

Αρχεία

Φάκελος/Πακέτο αδειών

Προβολή: 1 - 1 of 1
Μικρογραφία εικόνας
Ονομα:
license.txt
Μέγεθος:
1.74 KB
Μορφότυπο:
Item-specific license agreed upon to submission
Περιγραφή:
Κατεβάστε

Συλλογές

Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ