Dégradation photocatalytique du 2,4,6-trichlorophénol par des oxydes mixtes.

Abstract

2,4,6-Trichlorophenol (2,4,6-TCP) is one of the chlorophenol compounds widely used in various formulations as herbicides, fungicides, bactericides. This substance enters the environment through wastewater and agriculture which causes ecological and health problems, is a toxic pollutant, mutagenic and carcinogenic. This work consists of the degradation study of 2,4,6-TCP by advanced oxidation processes, namely: direct photolysis and heterogeneous photocatalysis by mixed oxides (Fe2O3/WO3). Removal of 2,4,6-TCP was followed spectrophotometer (UV / Vis). The results found show that the best oxidation process used is that of UV / Fe2O3 (90%) / WO3 (10%) with a degradation in 60 minutes.