photocatalytic systems is photoinstability due to the photocorrosion under UV light irradiation
resulting in the significant reduction in their photocatalytic activity. Therefore, in the present
study, SiO 2 nanopowders were incorporated into the ZnO nanoparticles to enhance their
photocatalytic activity for the decolorization of methylene blue (MB) dye in comparison with
pure ZnO/UV process. The efficiency of UV/ZnO/SiO 2 process was compared with UV/ZnO …