  The problem of detecting the ability of some metal oxides as photocatalysts
is receiving considerable attention in the world. The studied zinc oxide is
considered as one of the most utilized semiconductors, due to its direct band
gap of 3.37 eV and a large exciton binding energy of 60 meV at room
temperature. The characteristic formulation of Copper doped zinc oxide is
implemented to obtain an improved adsorption kinetics and photocatalytic
activity of zinc oxide photocatalyst capable of evolving estimated
photoluminescence (PL) spectra of zinc oxide nanoparticles to explore the
effect of Copper doping and annealing temperature on its optical properties.
using Solgel spin coating technique, Zinc oxide and copper doped zinc oxide
thin films were deposited on borosilicate substrate and all films was annealed
at 500 C for 5- hours. Optical properties of the films have been studied using
spectrophotometer in the wavelength range 300-800nm and structure of zinc oxide
films is investigated and included reported, also the effect of the doping
concentration of Copper. Further the characteristic formulation to treat the
photocatalytic performance of pure zinc oxide and Copper Doped zinc oxide
samples were investigated through the degradation of Malachite Green (MG), as a
model of organic pollutants, under UV light irradiation. Mainly, these films
exhibited a good transparency in the visible region. It was observed that when
the doping concentration increased, the transmittance also increased.
irradiation for different times.
