Effect of zinc oxide nanoparticles on azo dye

In this research, zinc Oxide nanoparticles were prepared by sol-gel technique. After preparing sol and ensure its sustainability, nanoparticles prepared by annealing from certain temperature. The structure and surface morphology were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM) [1]. In the following Photocatalytic activities of nanopowders were performed using degradation of azo dyes. The influence of pH, time of irradiation and dye azo concentration on the photocatalytic activity was investigated. The result showed that Zinc Oxide photocatalyst cannot degradation azo dye without irradiation UV-vis and presence of all three factors Azo dye, Zinc Oxide photocatalyst and UV-Vis radiation are necessary for degradation. Figure 1 shows the XRD pattern of ZnO nanoparticles for different temperature °C. The X-ray diffraction patterns were detected with Miller indices (002), (101), and (100) indexed to the hexagonal wurtzite structure with good crystallinity. The peak intensity increase, with increase the temperature [2].