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RASĀYAN - Journal Of Chemistry Vol.2, No.1, 1-256 (2009)

Ta2O5 USED AS PHOTOCATALYST FOR DEGRADATION OF EOSIN USING SOLAR ENERGY

Authors: Nikhil Kumar Verma, Jayant Gandhi and Shipra Bhardwaj*

Department of Chemistry, M.P.Govt. P.G. College, Chittorgarh (Rajasthan);E-mail: sidsidsmart@yahoo.co.in

The photocatalytic degradation of Eosin was studied using Ta2O5 as semiconductor. Visible light was used as the source of energy. The effect of various parameters like amount of semiconductor, pH, light intensity, dye concentration etc. on the photodegradation were investigated. A tentative mechanism is proposed.

Keywords : Semiconductor, Sunlight, Pseudo first order rate law, pH, Concentration of dye, bleaching of dye, Eosin, Ta2O5 etc.

Page No. : 251-256 Received:2 March 2009 Accepted: 24 March 2009 RJC-340