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Photocatalytic oxidation of gaseous toluene on titania/mesoporous silica powders in a fluidized-bed reactor
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SYSNO ASEP 0359746 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photocatalytic oxidation of gaseous toluene on titania/mesoporous silica powders in a fluidized-bed reactor Author(s) Tasbihi, M. (SI)
Štangar, U. L. (SI)
Černigoj, U. (SI)
Jirkovský, Jaromír (UFCH-W) RID
Bakardjieva, Snejana (UACH-T) SAI, RID, ORCID
Tušar, N. N. (SI)Source Title Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 161, č. 1 (2011), s. 181-188Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords titanium dioxide ; mesoporous silica ; photocatalysis Subject RIV CG - Electrochemistry Subject RIV - cooperation Institute of Inorganic Chemistry - Inorganic Chemistry CEZ AV0Z40400503 - UFCH-W (2005-2011) AV0Z40320502 - UACH-T (2005-2011) UT WOS 000287730900031 DOI 10.1016/j.cattod.2010.08.015 Annotation The photocatalytic degradation of toluene was carried out on titania/mesoporous silica photocatalysts in a self-constructed gaseous fluidized-bed photoreactor equipped with UVA light source. The powder photocatalysts were synthesized by incorporation of aqueous titania sol (as a photoactive component), into silica mesoporous materials (as a high-surface-area support), via the sol-gel impregnation method. SBA-15 was used as an ordered and KIL-2 as a disordered mesoporous silica support. The Ti/Si nominal molar ratio was adjusted to 1/2, 1/1 and 2/1. The photocatalysts were characterized by X-ray diffraction (XRD), nitrogen sorption (BET), UV-vis-NIR diffuse reflectance spectroscopy (DRS), Fourier transform infrared spectroscopy (FT-IR) and high-resolution transmission electron microscopy (HR-TEM). The effects of Ti/Si molar ratio and of the mesoporous silica structure were investigated measuring adsorption capacity and photocatalytic degradation of toluene. 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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