In this section
@article{Kafizas:2009:10.1016/j.jphotochem.2009.03.017,
author = {Kafizas, A and Kellici, S and Darr, JA and Parkin, IP},
doi = {10.1016/j.jphotochem.2009.03.017},
journal = {Journal of Photochemistry and Photobiology A: Chemistry},
pages = {183--183},
title = {Titanium dioxide and composite metal/metal oxide titania thin films on glass: A comparative study of photocatalytic activity},
url = {http://dx.doi.org/10.1016/j.jphotochem.2009.03.017},
volume = {204},
year = {2009}
}
TY - JOUR
AB - Titania and composite (Ag, Au, W) titania coatingswere prepared on glass microscope slides via a sol–gel dip-coating method. The resulting coatings were characterised by X-ray diffraction, Raman, scanning electron microscopy (SEM),wavelength dispersive X-ray (WDX), Brunauer–Emmett–Teller (BET) surface area analysis, atomic force microscopy (AFM) and UV–visible absorption techniques. Photocatalytic activ- ity of the coatings was determined by photomineralisation of stearic acid under 254, 365nm and white light sources monitored by FT-IR spectroscopy. These activities at 254 and 365nmlightwere represented as formal quantum efficiencies (FQEs) after determination of photon flux. Water contact angle mea- surements were made before and after irradiation with monochromatic 254 or 365nm light; all films demonstrated photo-assisted super hydrophilicity (PSH). A Ag:Au titania composite coatingwas found to be the most significant photoactive film. The mode of improved photocatalytic activitywas postulated in terms of a charge separation model. The Ag:Au TiO2 coating showed potential as a useful coating for hard self-cleaning surfaces due to its robustness, stability to cleaning and reuse and its photoactive response to indoor lighting conditions. ©
AU - Kafizas,A
AU - Kellici,S
AU - Darr,JA
AU - Parkin,IP
DO - 10.1016/j.jphotochem.2009.03.017
EP - 183
PY - 2009///
SN - 1010-6030
SP - 183
TI - Titanium dioxide and composite metal/metal oxide titania thin films on glass: A comparative study of photocatalytic activity
T2 - Journal of Photochemistry and Photobiology A: Chemistry
UR - http://dx.doi.org/10.1016/j.jphotochem.2009.03.017
VL - 204
ER -
Dr. Andreas Kafizas
Leader - Solar Coatings Group
e-mail: a.kafizas@imperial.ac.uk
tel: +44(0)20 7594 6752
twitter: @CoatingsSolar