Photocatalytic activity of TiO2 loaded with metal clusters
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Gdansk University of Technology
Universite Paris-Sud
Publication date: 2010-06-01
Corresponding author
Ewelina Grabowska   

Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdańsk, Poland
Physicochem. Probl. Miner. Process. 2010;45(1):29-38
TiO2 was surface modified with silver, gold and platinum ion clusters to improve its photocatalytic activity. The effect of metal content, the kind of dopant and titanium dioxide source (commercial – P25 and ST-01) used during preparation procedure on photoactivity were investigated. The photocatalytic activity was estimated by measuring the decomposition rate of 0.21 mM phenol aqueous solution under UV-Vis and visible (>400 nm). The highest photoactivity was observed for TiO2 loaded with silver (2%Ag on P25), gold (1%Au on P25) and platinum (0.5% Pt on ST-01) clusters. After 60 min. of irradiation under UV light phenol solution was degraded in 91%, 49% and 91%, respectively
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