Removal of contaminants from industrial effluents using nano photocatalyst BaO₃TiO.SrO₃TiO.

Abstract

Dyes are used widely in various colour industries like pulp, yarn, plastic etc. These dye materials are excreted in environment which pollutes it. A dye as case study, Brilliant Green has been removed through photo catalytic degradation process using a new semiconductor BaO₃TiO.SrO₃TiO. Optimum conditions are arrived at by varying <i>p</i>H, concentration of dye, amount of semiconductor, intensity of light etc. The process follows pseudo first order kinetics which is confirmed on kinetic parameters. Formation of non-toxic degraded products like NO₂, CO₂, H₂O etc. makes the process of immense importance. Participation of OH free radical is confirmed by scavenger study.