VISIBLE LIGHT IRRADIATED PHOTCATALYTIC DEGRADATION OF ORANGE II DYE IN PRESENCE OF ZnO NANOPARTICLES
Keywords:ZnO Nanoparticles, Orange-II Dye, Photo-catalytic Degradation, Visible Light
Zinc oxide nanoparticles were obtained by chemical precipitation method using zinc nitrate and aqueous solution of sodium hydroxide as precursors. The ZnO nanoparticles exhibited excellent photocatalytic activity for Orange-II dye degradation under visible light irradiation. ZnO nanoparticles are easy to recover and can be used upto three times without loss of degradation activity. We observed that Fenton reagent showed good activity for Orange II dye decolourization and degradation. Photocatalytic degradation of Orange II dye using H2O2/Fe3+ has also been studied and optimum conditions for the decolourization and degradation of dye has been established.
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