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Photocatalytic Degradation of Dibutyl Phthalate: Effect of Catalyst Immobilization
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SYSNO ASEP 0318725 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photocatalytic Degradation of Dibutyl Phthalate: Effect of Catalyst Immobilization Title Fotokatalytické odbourávání dibutylftalátu. Vliv ukotvení katalyzátoru Author(s) Bajt, O. (CZ)
Zita, J. (CZ)
Novotná, P. (CZ)
Krýsa, J. (CZ)
Jirkovský, Jaromír (UFCH-W) RIDSource Title Journal of Solar Energy Engineering-Transactions of the Asme - ISSN 0199-6231
Roč. 130, č. 4 (2008), , 041005-1-5Number of pages 5 s. Language eng - English Country US - United States Keywords titanium-dioxide ; aqueous solutions ; sediments ; reactor Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects 1M0577 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000259805200005 DOI 0199-6231 Annotation The degradation processes of dibutyl phthalate (DBP), an important pollutant, are rather slow and do not lead to the complete decomposition. In the present work the photocatalytic degradation of dibutyl phthalate in the presence of TiO2 was studied. Experiments were carried out in suspensions and with immobilized layers, prepared from powder suspensions and by sol-gel technique. Two different polychromatic light sources (band maxima at 350 nm and 365 nm) were used for irradiation. The results confirmed that the photocatalytic degradation of DBP using TiO2 is an efficient degradation process and proceeds even at very low concentration of photocatalyst (0.001 g dm-3). Reaction rates were significantly higher in the case of the lamp with the maximum at 365 nm, which is due to the higher light intensity of this lamp. At comparable TiO2 amount P25 layers exhibit about 50% of photoactivity using TiO2 suspension. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
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