Photodegradation of Methylene Blue Dye for Water Purification using ZnO Nanoparticles Synthesized by Acoustic Cavitation

In this paper, Zinc Oxide (ZnO) nanopowders are synthesized using acoustic cavitation by applying different temperature conditions.Synthesized nano-powders are characterized using X-ray diffraction, UV-visible spectroscopy, photoluminescence, scanning electron microscopy, energy dispersive spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy.Synthesized ZnO nanoparticles are used as catalysts in the photo-degradation of Methylene Blue.The degradation time for Methylene Blue was found to be 45 minutes.Degradation efficiency by using ZnO nanoparticles is found to be greater than 98%.Furthermore, we have discussed the efficiency of dye degradation as well as the kinetic study of the photocatalytic process.