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Mesoporous films of TiO2 as efficient photocatalysts for the purification of water
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SYSNO ASEP 0348665 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mesoporous films of TiO2 as efficient photocatalysts for the purification of water Tvůrce(i) Rathouský, Jiří (UFCH-W) RID, ORCID
Kalousek, Vít (UFCH-W)
Kolář, Michal (UFCH-W)
Jirkovský, Jaromír (UFCH-W) RIDZdroj.dok. Photochemical & Photobiological Sciences - ISSN 1474-905X
Roč. 10, č. 3 (2011), s. 419-424Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova TiO2 ; mesoporous films ; photocatalyst Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GA104/08/0435 GA ČR - Grantová agentura ČR GD203/08/H032 GA ČR - Grantová agentura ČR 1M0577 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000287934400015 DOI 10.1039/C0PP00185F Anotace Variably thick mesoporous TiO2 films were prepared by alternately dip- and spray-coating using sol containing titanium(IV) alkoxide, concentrated HCl and suitable block-copolymer as a structure directing agent. The film thickness was controlled by varying the number of deposited layers. Their porosity was homogeneous: surface area and pore volume increased linearly with increasing number of deposited layers. Photoactivity of the films was tested employing photocatalytic degradation of 10−4 M 4-chlorophenol in a 60 mL photoreactor under UV irradiation at 365 nm. The incident light intensity was 1 mW cm−2. The degradation rate constants increased with increasing number of layers, proportional to their absorbances. However, the progressive improvement of the photocatalytic performance slightly decreased with the increasing number of layers. The spray-coating layers exhibited lower photocatalytic performance due to their smaller thicknesses. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2012
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