Studies on Photo Degradation of Indigo Carmine Dye by Mechanochemically Synthesized Nano Zinc Selenite

In the present paper a novel mechanochemical synthesis method was introduced for the synthesis of zinc selenite. The product was obtained at 320 °C by mechanochemical method for a period of 20 h. The structural and micro structural properties of ZnSeO3 material was characterized by various analytical techniques like FT-IR, UV-DRS, XRD and SEM. The aim of the present work is to see the application of nanocrystalline material ZnSeO3 for photodegradation of indigo carmine dye with respect to various dye concentrations and amount of catalyst. The XRD analysis confirms orthorhombic structure of ZnSeO3 and the average particle size was found to be below 10 nm. Futher, the effect of pH and dye concentration on photodegradation was studied. The photodegradation reaction was monitored on the UV-visible double beam spectrophotometer. ZnSeO3 treatment exhibited 93% degradation of indigo carmine dye.