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Photocatalytic TiO2 Coatings: Effect of Substrate and Template

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Summary.

Transparent TiO2 films with a high photodegradation activity towards an azo dye in aqueous solution were prepared by sol–gel processing. Films on soda–lime glass supports protected with a thin silica barrier layer exhibited better crystallization and monodisperse nanoparticles, higher absorption of light below 370 nm, and higher photocatalytic activity than those films deposited on bare glass supports proving the detrimental effect of interdiffused sodium ions on the development of the anatase nanostructure. The effect of substrate was more pronounced in thinner films (300 nm) than in thicker ones (1200 nm), which were achieved by adding a template (i.e. Pluronic F127) to the sol.

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Authors and Affiliations

  1. Laboratory for Environmental Research, Nova Gorica Polytechnic, P.O.B. 301, 5001, Nova Gorica, Slovenia

    Urška L. Štangar, Urh Černigoj, Polonca Trebše & Ksenija Maver

  2. CNR-ISTM, University of Padova, I-35131, Padova, Italy

    Silvia Gross

Authors
  1. Urška L. Štangar
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  2. Urh Černigoj
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  3. Polonca Trebše
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  4. Ksenija Maver
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  5. Silvia Gross
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Correspondence to Urška L. Štangar.

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Štangar, U., Černigoj, U., Trebše, P. et al. Photocatalytic TiO2 Coatings: Effect of Substrate and Template. Monatsh. Chem. 137, 647–655 (2006). https://doi.org/10.1007/s00706-006-0443-y

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  • DOI: https://doi.org/10.1007/s00706-006-0443-y

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