Abstract: Methyl green is the oldest known synthetic groups. Most basic dyes of this series are beautiful crystalline Compounds with a reflex the colour of which is often complementary to the colour in solution. Methyl green a triarylmethane dye providing toxic effluents can be highly degraded using TiO₂ catalyst. Photo catalytic degradation of methyl green dye have been studied with the help of variety of parameters which are effect of temperature, light intensity and irradiation time. The influence of temperature has been studied in the range from 30^OC to 55^OC. The rate constant increased with the increase in the light intensity.

Keywords – Methyl green, Toxic, Catalyst, Temperature, Light Intensity.