Title :
EPR and SAXS studies of a TiO2-based gel
Author :
Pattier, Bruno ; Henderson, Mark ; Kassiba, Abdelhadi ; Girtan, Mihaela ; Gibaud, Alain
Author_Institution :
LPEC, Univ. du Maine, Le Mans, France
Abstract :
The response of a photosensitive TiO2-based gel to UV light is described. Upon irradiation, the gel adsorbs light at 365 nm and becomes dark blue due to the transformation of the Ti4+ centers into Ti3+. This behavior is revealed using electron paramagnetic resonance spectroscopy as a function of the gel chemical composition. The structure of the TiO2 network is studied by small angle x-ray scattering.
Keywords :
X-ray scattering; gels; paramagnetic resonance; photochemistry; spectrochemical analysis; titanium compounds; ultraviolet radiation effects; wide band gap semiconductors; EPR spectra; TiO2; UV irradiation; electron paramagnetic resonance spectroscopy; gel chemical composition; photosensitive gel; small angle X-ray scattering; wavelength 365 nm; Anodes; Chemicals; Electrons; Optical scattering; Paramagnetic resonance; Photovoltaic cells; Platinum; Spectroscopy; Titanium; X-ray scattering; electron paramagnetic resonance; gel; photosensitive material; small angle x-ray scattering; titania;
Conference_Titel :
ICTON Mediterranean Winter Conference,2009. ICTON-MW 2009. 3rd
Conference_Location :
Angers
Print_ISBN :
978-1-4244-5745-8
Electronic_ISBN :
978-1-4244-5746-5
DOI :
10.1109/ICTONMW.2009.5385592
