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

fYear

2009

fDate

10-12 Dec. 2009

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICTONMW.2009.5385592

Filename

5385592