Characteristics of doped-TiO2 photocatalysts
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Gdansk University of Technology
Adriana Zaleska   

Department of Chemical Technology, Gdansk University of Technology, ul. G. Narutowicza 11/12, 80-952 Gdansk, Poland
Publication date: 2008-01-01
Physicochem. Probl. Miner. Process. 2008;42(1):211–222
Titanium dioxide represents an effective photocatalyst for water and air purification and for self-cleaning surfaces. TiO2 shows relatively high reactivity and chemical stability under ultraviolet light (λ<387nm), whose energy exceeds the band gap of 3.3 eV in the anatase crystalline phase. The development of photocatalysts exhibiting high reactivity under visible light (λ>380nm) should allow the main part of the solar spectrum, even under poor illumination of interior lighting, to be used. In this work the influence of TiO2 structure on visible light photoactivity and novel photocatalysts doped with sulfur, nitrogen, boron and carbon are presented. The photocatalytic activity of obtained powders was referred to dopant chemical form, crystalline structure, crystallite size, surface area and preparation method.