Original title: Nanoporous Titania Layers for Subsequent Applications
Translated title: Nanoporézní vrstvy TiO2 a jejich využití
Authors: Krejčíková, Simona ; Matějová, Lenka ; Cajthaml, Tomáš ; Matěj, Z. ; Strýhal, Z. ; Šolcová, Olga
Document type: Papers
Conference/Event: 18th International Congress of Chemical and Process Engineering CHISA 2008, Praha (CZ), 2008-08-24 / 2008-08-28
Year: 2008
Language: eng
Abstract: [eng] [cze]
Titania that is promising as catalytic agent for removing of organic impurities from waste water and air, photovoltaic cell and pigment, were studied. Doped Titania layers deposited on various substrates were prepared by sol-gel technique. Sol was prepared by using nonionic surfactants Triton X, organic solvent, water and metal precursors. Deposited gel layers were converted to anatase layers by calcination at 400°C for 4 hours or by subcritic H2O/ supercritic CO2 extraction/ subcritic CH3OH extraction (SWE/SFE/PFE). For deeper textural and structural characterization of prepared layers nitrogen physical adsorption, XRD, AFM and SEM analyses were performed. Oxid titaničitý je slibný katalyzátor pro fotodegradaci řady organických nečistot. Vrstvy TiO2 byly připraveny sol-gelovou metodou. Sol byl získán smícháním organického rozpouštědla, neionogenního surfaktantu, vody a kovového prekurzoru. Tenké vrstvy byly nanášeny na skleněné substráty z připraveného solu. Ke vzniku krystalické anatasové vrstvy byla použita kalcinace při 400°C. Byly zkoumány strukturní vlastnosti připravených tenkých vrstev.
Keywords: physical adsorption; sol-gel techniques
Project no.: CEZ:AV0Z40720504 (CEP), CEZ:AV0Z50200510 (CEP), IAA4072404 (CEP), KAN400720701 (CEP)
Funding provider: GA AV ČR, GA AV ČR
Host item entry: Summaries 2, ISBN 978-80-02-02049-3

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0164040

Permalink: http://www.nusl.cz/ntk/nusl-39179


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