About: Two-component transparent TiO2/SiO2 and TiO2/PDMS films as efficient photocatalysts for environmental cleaning     Goto   Sponge   NotDistinct   Permalink

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Description
  • TiO2 filmy modifikované polydimethylsiloxanem (PDMS) nebo SiO2 byly připraveny metodou sol-gel kombinovanou s dip-coating. TiO2/PDMS filmy mají nižší otěruvzdornost a jsou hydrofobnější naž filmy TiO2/SiO2. Protože TiO2/PDMS filmy kalcinované při 350-450 oC vykazují rozvinutou mikro-mesoporositu, adsorbují značná množství methylenové modře z jejího vodného roztoku. Avšak jejich fotokatalytická aktivita při rozkladu tohoto barviva je velmi nízká. Naopak tyto filmy jsou vysoce aktivní při degradaci vrstev methylstearátu. Tyto rozdíly v účinnosti jsou vysvětleny rozvinutou porozitou filmů. Filmy modifikované SiO2 mají velmi dobrou otěruvzdornost a mohou být snadno převedeny slabým osvícení ultrafialovým světlem do značně stabilního superhydrofilního stavu. Dále vykazují velmi dobré fotokatalytické vlastnosti v obou testovacích reakcích. (cs)
  • TiO2 films modified either with polydimethylsiloxane (PDMS) or SiO2 were prepared by a sol–gel method combined with dip-coating. TiO2/PDMS films have a lower abrasion resistance and are more hydrophobic than the TiO2/SiO2 ones. As the TiO2/PDMS films calcined at 350–450 oC exhibit developed micro-mesoporosity, they adsorb considerable amounts of methylene blue from its water solution. However, their photocatalytic activity in the decomposition of this dye is very low. On the contrary, these films are highly active in the degradation of the layers of methyl stearate. This efficiency variation is explained by the film-developed porosity. The films modified with SiO2 have very good abrasion resistance and can be easily converted by weak UV-illumination into substantially stable superhydrophilic state. Furthermore, they exhibit good photocatalytic properties in both test reactions.
  • TiO2 films modified either with polydimethylsiloxane (PDMS) or SiO2 were prepared by a sol–gel method combined with dip-coating. TiO2/PDMS films have a lower abrasion resistance and are more hydrophobic than the TiO2/SiO2 ones. As the TiO2/PDMS films calcined at 350–450 oC exhibit developed micro-mesoporosity, they adsorb considerable amounts of methylene blue from its water solution. However, their photocatalytic activity in the decomposition of this dye is very low. On the contrary, these films are highly active in the degradation of the layers of methyl stearate. This efficiency variation is explained by the film-developed porosity. The films modified with SiO2 have very good abrasion resistance and can be easily converted by weak UV-illumination into substantially stable superhydrophilic state. Furthermore, they exhibit good photocatalytic properties in both test reactions. (en)
Title
  • Two-component transparent TiO2/SiO2 and TiO2/PDMS films as efficient photocatalysts for environmental cleaning
  • Two-component transparent TiO2/SiO2 and TiO2/PDMS films as efficient photocatalysts for environmental cleaning (en)
  • Dvousložkové transparentní TiO2/SiO2 a TiO2/PDMS filmy jako účinné fotokatalyzátory pro zvyšování čistoty životního prostředí (cs)
skos:prefLabel
  • Two-component transparent TiO2/SiO2 and TiO2/PDMS films as efficient photocatalysts for environmental cleaning
  • Two-component transparent TiO2/SiO2 and TiO2/PDMS films as efficient photocatalysts for environmental cleaning (en)
  • Dvousložkové transparentní TiO2/SiO2 a TiO2/PDMS filmy jako účinné fotokatalyzátory pro zvyšování čistoty životního prostředí (cs)
skos:notation
  • RIV/61388955:_____/07:00308925!RIV08-MSM-61388955
http://linked.open.../vavai/riv/strany
  • 179;185
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(1M0577), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 456130
http://linked.open...ai/riv/idVysledku
  • RIV/61388955:_____/07:00308925
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • TiO2; SiO2; PDMS; thin film (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [F5B29D33C706]
http://linked.open...i/riv/nazevZdroje
  • Applied Catalysis B - Environmental
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 79
http://linked.open...iv/tvurceVysledku
  • Kalousek, Vít
  • Krýsa, J.
  • Novotná, P.
  • Rathouský, Jiří
  • Zita, J.
http://linked.open...n/vavai/riv/zamer
issn
  • 0926-3373
number of pages
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