Preparation and photocatalytic activity of iron-modified titanium dioxide photocatalyst
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Gdansk University of Technology
Adriana Zaleska   

Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
Publication date: 2012-01-01
Physicochem. Probl. Miner. Process. 2012;48(1):193–200
Iron modified TiO2 was prepared by the sol-gel method and surface modification method followed by calcination at 400°C. Two types of titanium dioxide: TiO2 ST-01(Ishihara Sangyo Ltd., Japan; 300 m2/g), and TiO2 P25 (Evonik, Germany, 50 m2/g) were used in the grinding procedure. The photocatalysts were characterized by UV-VIS absorption and BET surface area measurements. The photocatalytic activity of the obtained powders in UV-Vis and visible light was estimated by measuring the decomposition rate of phenol (0.21 mmol/dm3) in an aqueous solution. The best photoactivity under visible light was observed for iron doped TiO2 with 0.5% by grinding the TiO2 ST-01.