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Department of Chemistry. Sardar Patel University, Vallabh Vidyanagar-388 120, India Department of Chemistry. North Gujarat University. Patan-384 265, India Manuscript received 1 April 2002. revised 1 October 2002. accepted 18 December 2002 The chemical degradation of picric acid by irradiation in presence of semiconducting ZnO was studied. Kinetics of the reaction were found to be affected by parameters like concentration of substrate, pH, amount of photocatalyst, light intensity etc. The effects of radical quencher and sensitizer were also studied. A probable mechanism is suggested. |
