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| - In this work we investigate the photocatalytic properties of self-organized TiO2 nanotube layers. The tubes were grown by anodization of titanium in floride containing electrolytes in two different forms as a %22short%22 tubes (length ~500 nm) and as a %22long%22 tubes (length ~2.5 m) with a tube diameter and wall thickness of approx. 100 and 15 nm, respectively. After annealing the tubes to anatase, we used them for the UV light photocatalytic decomposition of Acid Orange 7 and Methylene Blue as a model compounds. For comparison we investigated also compact anodic TiO2 film (thickness ~ 50 nm). The results show that %22long%22 tubes are in photocatalytic decomposition more effective than %22short%22 tubes, which are better than compact anodic TiO2 layer. The decomposition follows pseudo-first order kinetics. We studied also influence of the initial UV light intensity and the starting concentration of Acid Orange 7 for the long tubes. The present result show that self-organized
- In this work we investigate the photocatalytic properties of self-organized TiO2 nanotube layers. The tubes were grown by anodization of titanium in floride containing electrolytes in two different forms as a %22short%22 tubes (length ~500 nm) and as a %22long%22 tubes (length ~2.5 m) with a tube diameter and wall thickness of approx. 100 and 15 nm, respectively. After annealing the tubes to anatase, we used them for the UV light photocatalytic decomposition of Acid Orange 7 and Methylene Blue as a model compounds. For comparison we investigated also compact anodic TiO2 film (thickness ~ 50 nm). The results show that %22long%22 tubes are in photocatalytic decomposition more effective than %22short%22 tubes, which are better than compact anodic TiO2 layer. The decomposition follows pseudo-first order kinetics. We studied also influence of the initial UV light intensity and the starting concentration of Acid Orange 7 for the long tubes. The present result show that self-organized (en)
- V této práci jsme se zabývali fotokatalytickými vlastnostmi vrstev tvořených samoorganizovanými nanotrubičkami TiO2. Anodickou oxidací titanu v elektrolytu obsahujícím fluoridy byly připraveny dvě odlišné formy nanotrubiček - %22krátké%22 trubičky (délka ~500 nm) a %22dlouhé%22 nanotrubičky (délka ~2,5 m). Průměr trubiček byl přibližně 100 nm a tloušťka stěny přibližně 15 nm. Po vyžíhání přešla krystalová struktura vrstvy trubiček na anatas a dále jsme je použili k fotokatalytické degradaci modelových látek Acid Oranž 7 a Methylenová modř. Pro srovnání jsme připravili také anodický film TiO2 (tloušťka ~ 50 nm). Z výsledků je patrné, že %22dlouhé%22 nanotrubičky mají vyšší fotokatalytickou aktivitu než %22krátké%22, které jsou stále více fotokatalyticky aktivnější než kompaktní film TiO2. Rozklad modelových látek probíhá kinetikou pseudoprvního řádu. Dále jsme studovali u %22dlouhých%22 nanotrubiček vliv intenzity UV záření a vliv počáteční koncentrace Acid Oranže 7 na fot (cs)
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| Title
| - Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts
- Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts (en)
- Vrstvy tvořené samoorganizovanými nano-trubičkami TiO2 jako vysoce účinný fotokatalyzátor (cs)
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| skos:prefLabel
| - Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts
- Self-Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts (en)
- Vrstvy tvořené samoorganizovanými nano-trubičkami TiO2 jako vysoce účinný fotokatalyzátor (cs)
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| skos:notation
| - RIV/60461373:22310/07:00018683!RIV08-MSM-22310___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/07:00018683
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Decomposition; nanotubes; organic dyes; photocatalysis; titanium dioxide (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Krýsa, Josef
- Macák, Jan
- Zlámal, Martin
- Schmuki, P.
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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