Mesoporous films of TiO2 as efficient photocatalysts for the purification of water
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F11%3A00348665" target="_blank" >RIV/61388955:_____/11:00348665 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1039/C0PP00185F" target="_blank" >http://dx.doi.org/10.1039/C0PP00185F</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/C0PP00185F" target="_blank" >10.1039/C0PP00185F</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Mesoporous films of TiO2 as efficient photocatalysts for the purification of water
Popis výsledku v původním jazyce
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 104 M 4-chlorophenol in a 60 mL photoreactor under UV irradiation at 365 nm. The incident light intensity was 1 mW cm2. 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.
Název v anglickém jazyce
Mesoporous films of TiO2 as efficient photocatalysts for the purification of water
Popis výsledku anglicky
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 104 M 4-chlorophenol in a 60 mL photoreactor under UV irradiation at 365 nm. The incident light intensity was 1 mW cm2. 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.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CF - Fyzikální chemie a teoretická chemie
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Photochemical & Photobiological Sciences
ISSN
1474-905X
e-ISSN
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Svazek periodika
10
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
FR - Francouzská republika
Počet stran výsledku
6
Strana od-do
419-424
Kód UT WoS článku
000287934400015
EID výsledku v databázi Scopus
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