ZINC OXIDE NANOPARTICLES FOR THE DECOLOURIZATION OF E124 DYE FROM AQUEOUS SOLUTION

The efficiency of Zinc Oxide nanoparticles on removal of E124 dye in aqueous solution has been studied. Different factors and parameters that affect the degradation efficiency of E124 dye were studied including the initial concentration of pollutant, pH of solution, treatment time, concentration of ZnO nanoparticle (ZnO NP), temperature and salt addition. Under the achieved optimal conditions (initial concentration of dye solution 5ppm, treatment time 80 min, concentration of ZnO NP 0.08g, pH 7 and temperature of 40 0C) for best removal of E124 dye from aqueous solution the efficiency of ZnO NP doped with Ag+ was tested. Different amounts of Ag+ % doped on ZnO NP from 0.5 to 2% were tested and the highest dye removal % of 92 was achieved at 1 % Ag+ doping of ZnO NP.