Mills, A. and Elliott, Nicholas and Hill, George and Fallis, David and Durrant, James R. and Willis, Richard L. (2003) Preparation and characterisation of novel thick sol-gel titania film photocatalysts. Photochemical and Photobiological Sciences, 2 (5). pp. 591-596. ISSN 1474-905XFull text not available in this repository. (Request a copy from the Strathclyde author)
The preparation and characterization of thick (9 µm), clear, mechanically robust and photocatalytically active films of nanocrystalline anatase titania are described. XRD and SEM analysis show the films comprise 13 nm particles of anatase TiO2. Thin (54 nm) films of the paste TiO2, along with sol-gel titania films made by a more traditional route are also prepared and characterised. All titania films mediate the photocatalytic destruction of stearic acid with a quantum yield of 0.0016 ± 0.0003, using either 365 nm (i.e. BLB) or 254 nm (germicidal) light. P25 TiO2 films also appear to mediate the same process with a similar formal quantum efficiency. Of all the films tested, the thick paste TiO2 films are the most ideally suited for use with near UV light, for reasons which are discussed. All the titania films tested exhibit photoinduced superhydrophilicity.
|Keywords:||chemical biology, chemical science, chemical technology, molecular biosystems, soft matter, Chemistry, Physical and Theoretical Chemistry|
|Subjects:||Science > Chemistry|
|Department:||Faculty of Science > Pure and Applied Chemistry|
|Depositing user:||Mr Derek Boyle|
|Date Deposited:||10 Mar 2006|
|Last modified:||01 Jul 2016 02:08|