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2580495 
Journal Article 
Effect of surfactant on TiO(2)/UV mediated heterogeneous photocatalytic degradation of DDT in contaminated water 
Sinha, S; Tapia Orozco, NG; Acosta Ramirez, DS; Rodriguez-Vazquez, R 
2009 
2 
411-414 
English 
WOS:000273330500110 
In the present study we describe the TiO(2)/UV mediated heterogeneous photocatalytic treatment of 4,4-Dichloro-Diphenyl-1,1,1-Trichloroethane (DDT) contaminated water and the effect of surfactant (Surfox) on this process. A novel photocatalytic system is designed, made by TiO(2) coated tubular glass in a photoreactor with UV light illumination. The photo catalytic degradation was observed to be very fast and the treatment time was reduced to 40 min which is much faster compared to the biodegradation of the pollutants. After this study we conclude that the best result for the degradation is found to be at 200ml/min air flow, CMC (critical micelle concentration) and above CIVIC of the surfactant. The surfactant concentration does not inhibit the generation of free radicals involved in pesticides photocatalytic degradation. 
TiO(2); photocatalysis; DDT; Surfactant