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Multilayered ordered mesoporous platinum/titania composite films: does the photocatalytic activity benefit from the film thickness?
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SYSNO ASEP 0369110 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Multilayered ordered mesoporous platinum/titania composite films: does the photocatalytic activity benefit from the film thickness? Author(s) Ismail, A. A. (EG)
Bahnemann, D. (DE)
Rathouský, Jiří (UFCH-W) RID, ORCID
Yarovyi, V. (DE)
Wark, M. (DE)Source Title Journal of Materials Chemistry. - : ROYAL SOC CHEMISTRY - ISSN 0959-9428
Roč. 21, č. 21 (2011), s. 7802-7810Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords titanium dioxide films ; TiO2 thin films ; sol-gel method Subject RIV CF - Physical ; Theoretical Chemistry CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000290670000040 DOI 10.1039/c1jm10366k Annotation Multilayered films of TiO(2) with ordered cubic mesoporosity were grown via layer-by-layer deposition on a conductive FTO (F-doped SnO(2)) substrate by dip-coating and subsequent calcination at 400 degrees C. Since platinum nanoparticles are known to enhance the photocatalytic activity, they were introduced into the TiO(2) mesopores by pulsed electrodeposition. Additionally, sandwich-like layers with up to five alternating TiO(2) and Pt layers were prepared. The photocatalytic gas-phase oxidation of acetaldehyde served as a test reaction to characterize the activity in the gas phase of both pristine TiO(2) as well as Pt/TiO(2) single-and multilayer films. The ordered mesoporous pristine TiO(2) and Pt/TiO(2) nanocomposites exhibited significantly higher photoactivity than commercial Pilkington Activ (TM) glass and dense TiO(2) films. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2012
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