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Nanoporous Titania Layers for Subsequent Applications

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    0313129 - ÚCHP 2009 CZ eng C - Conference Paper (international conference)
    Krejčíková, Simona - Matějová, Lenka - Cajthaml, Tomáš - Matěj, Z. - Strýhal, Z. - Šolcová, Olga
    Nanoporous Titania Layers for Subsequent Applications.
    [Nanoporézní vrstvy TiO2 a jejich využití.]
    Summaries 2. Praha: Process Engineering Publisher, 2008, s. 704. ISBN 978-80-02-02049-3.
    [18th International Congress of Chemical and Process Engineering CHISA 2008. Praha (CZ), 24.08.2008-28.08.2008]
    R&D Projects: GA AV ČR IAA4072404; GA AV ČR KAN400720701
    Institutional research plan: CEZ:AV0Z40720504; CEZ:AV0Z50200510
    Keywords : sol-gel techniques * physical adsorption
    Subject RIV: CF - Physical ; Theoretical Chemistry

    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.
    Permanent Link: http://hdl.handle.net/11104/0164040

     
     
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