Degradation of acid red 14 by silver ion-catalyzed peroxydisulfate oxidation in an aqueous solution

Authors : Mohammad Hossein RASOULIFARD, Seied Mohammad Mahdi DOUST MOHAMMADI

Pages : 73-80

View : 17 | Download : 15

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Silver ion insert ignore into journalissuearticles values(Ag1+);-catalyzed peroxydisulfate was studied for the degradation of acid red 14 insert ignore into journalissuearticles values(AR-14); in an aqueous medium. The effect of different parameters, such as temperature, peroxydisulfate concentration, and dye and Ag1+ concentrations, were investigated. Application of Ag1+-catalyzed peroxydisulfate, as an advanced oxidation process, introduces an effectual method for wastewater treatment. An accelerated reaction using S2O82- to destroy dyes can be achieved via chemical activation with Ag1+ to generate sulfate radicals insert ignore into journalissuearticles values(SO4-);. Degradation efficiency was not considerable when using peroxydisulfate alone. Studies revealed that increases in temperature and in the initial concentrations of peroxydisulfate and Ag1+ up to 80 mM and 10 mM, respectively, enhanced dye degradation, while a decrease in the initial dye concentration would also enhance the efficiency of its degradation.
Keywords : Advanced oxidation process, peroxydisulfate, acid red 14, Ag1 catalyst, wastewater treatment