NA11[CUFEW18O62] MEDIATED PHOTOCATALYTIC DEGRADATION OF BROMOCRESOL GREENDAKSHA SHARMA, MAMTA ORDIA AND RAKSHIT AMETA
Potable water is a main need of everyone including human being, animal and plant kingdom. Effluents of different textile, dyeing and printing industries, which are being discharged in nearby water resources, are creating water pollution. Use of a semiconductor as photocatalyst is considered as a promising technology, which provides solution for this problem. In the present investigation, the photochemical degradation of bromocresol green by Well-Dawson heteropoly anion, Na11[CuFeW18O62] has been carried out. The rate of photocatalytic degradation of dye was observed spectrophotometrically. The effect of different parameters, which affect the rate of reaction; like pH, concentration of dye, amount of semiconductor and light intensity has been studied for the above system. Kinetic studies reveal that the photocatalytic process follows pseudo-first order kinetics. A tentative mechanism for the photocatalytic degradation of bromocresol green has also been proposed.