Photocatalytic activity of TiO2 loaded with metal clusters
 
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1
Gdansk University of Technology
2
Universite Paris-Sud
CORRESPONDING AUTHOR
Ewelina Grabowska   

Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdańsk, Poland
Publication date: 2010-06-01
 
Physicochem. Probl. Miner. Process. 2010;45(1):29–38
 
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ABSTRACT
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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