Morphological,spectroscopic and photocatalytic properties of Eu3+:TiO2 synthesized by solid-state and hydrothermal-assisted sol-gel processes |
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| Authors: | M Fhoula T Kallel M Messaoud M Dammak E Cavalli |
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| Affiliation: | 1. Groupe de Physique des Matériaux Luminescent, Laboratoire de Physique Appliquée, Département de Physique, Faculté des Sciences de Sfax, Sfax 3018, Tunisia;2. Laboratory of Industrial Chemistry, National School of Engineers, University of Sfax, BP1173 Sfax, Tunisia;3. Department of Chemical Sciences, Life and Environmental Sustainability, Parma University, Parma 43121, Italy;4. Department of Physics, college of science and Arts, Jouf, University, Saudi Arabia |
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| Abstract: | Eu3+ doped TiO2 powders were synthesized by solid-state reaction and hydrothermal-assisted sol-gel process. They were characterized by X-ray diffraction, scanning electron microscopy and photoluminescence techniques. Both synthetic procedures yield the pure anatase phase of titania. The excitation and emission spectra and the decay profiles were measured for different thermal treatments of the samples, in order to investigate the effects of the synthesis conditions on the doping mechanism. The photocatalytic activity was investigated by measuring the degradation of methylene blue under UV light irradiation and a correlation between its efficiency and the luminescence performance has been proposed. |
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| Keywords: | Anatase Optical spectroscopy Solid-state Hydrothermal-assisted sol-gel Photocatalysis |
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