- Sunday, April 5, 2009
- PHOTO-DEGRADATION OF ORGANIC CONTAMINANTS BY
- Published at:Nano-Conference09
PHOTO-DEGRADATION OF ORGANIC CONTAMINANTS BY
DYES-SENSITIZED NANOPARTICALES OF TiO2 SUPPORTED ONTO INSOLUBLE SUPPORTS
Ahed Zyoud & Hikmat S. Hilal
Semi-conducting nano-materials are being used as catalysts for photo-degradation of water contaminants. In TiO2 photo-catalytic activity process, electron–hole pairs that are generated by the band-gap excitation carry out in situ degradation of toxic pollutants. The holes oxidize toxic organic compounds, and the electrons reduce toxic metal ions to metals, or oxygen to oxide.
Instead of decomposed a toxic CdS dye a safe sensitize natural dyes were used. Both prepared (TiO2/Natural dye) systems show an efficient photodegradation result on both mentioned contaminants model. The prepared natural dye sensitized catalyst were supported on A. Also Kinetics, effect of temperature, effect of pH, and farther studies were applied on the prepared catalyst.