Mills, A; Elliott, N; Parkin, IP; O'Neill, SA; Clark, RJH; (2002) Novel TiO2 CVD films for semiconductor photocatalysis. J PHOTOCH PHOTOBIO A , 151 (1-3) 171 - 179.
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A novel CVD film of titanium(IV) oxide has been prepared on glass, via the reaction of titanium(IV) chloride and ethyl acetate, using a CVD technique. The film is clear, very robust mechanically and comprised of a thin (24 nm) layer of nanocrystalline anatase titania that absorbs light of lambda < 360 nm. The film is active in terms of photo-induced superhydrophilicity, and thus its water contact angle is reduced markedly (from 61 to 11degrees) upon irradiation with ultra-bandgap light. The film is also active photocatalytically and is able to destroy a deposited layer of stearic acid upon exposure to ultra-bandgap light. The photo-induced superhydrophilic and photocatalytic activities of this film are compared with those for one comprised of P25 particles. (C) 2002 Elsevier Science B.V. All rights reserved.
|Title:||Novel TiO2 CVD films for semiconductor photocatalysis|
|Keywords:||titania, CVD, photocatalyst, superhydrophilicity, stearic acid, TITANIUM-DIOXIDE, STEARIC-ACID, THIN-FILMS, SURFACES, PHOTODEGRADATION, PHOTOGENERATION, OXIDATION, GLASS|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry|
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