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Synthesis of Strontium-doped Titania Material via Solid State Reaction and their Photodegradation Properties of O-nitrophenol

Abstract: A mesoporous materials of strontium-doped Titania (Sr-TiO2) was synthesized by the solid-phase method. The materials were characterized by XRD, TEM, UV-Vis, BET, Raman and other analytical techniques, the photocatalytic activity was evaluated by measuring the photodegradation of O-nitrophenol solution under UV irradiation. The results showed that the crystal lattice of Sr-TiO2 was anatase phase, BET surface area was 160.9 m2/g, and pore size distribution center was 7.2 nm. because of Strontium doping£¬there was small distortion in the TiO2 crystal structure, and was red-shifted on absorption band; The photodegradation experiment indicated that the photocatalytic activity of Sr-TiO2 improved performance than pure TiO2, the photodegradation reached 98.2% in 2 hours. Under UV irradiation, when the initial concentration Of O-nitrophenol solution was 30 mg/L and catalyst amount was 1.2g/L, the photocatalytic efficiency reached the maximum.

[ Last edited by wulindong on 2012-3-11 at 18:44 ]

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wulindong(½ð±Ò+10, ·­ÒëEPI+1): ¡ï¡ï¡ïºÜÓаïÖú, ºÜÓаïÖú 2012-03-11 18:52:23
Mally89: ½ð±Ò+1 2012-03-17 08:58:26
The photodegradation experiment indicated that the photocatalytic activity of Sr-TiO2 improved performance than pure TiO2

½¨Òé¸ÄΪ£º The photodegradation experiment indicated that the photocatalytic activity performance of Sr-TiO2 was improved obviously compared with pure TiO2
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