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Use of Undoped and Iron Doped Zirconium Dioxide in Photocatalytic Degradation of Malachite Green

Shikha Panchal and Ritu Vyas

The present study involves the photocatalytic degradation of malachite green by undoped and iron doped semiconductor zirconium dioxide and the progress of the reaction was observed spectrophotometrically at 616 nm. The effect of various operating variables like pH, concentration of dye, amount of semiconductor and light intensity on the rate of degradation was observed. A tentative mechanism has been proposed for the photocatalytic degradation of dye, involving hydroxyl radical as an active oxidizing species.