Investigating the low cost photodegradation performance against organic Pollutants using CeO2/MnO2/ polymer blend nanostructures

In present work, films of CeO2-MnO2 NPs doped PEO-PVP blend have been prepared for photodegradation of organic dyes with low cost, high activity, anti-aggregation and low concentration of nanoparticles compare with other works. The structure, optical and photodegradation characteristics of PEO/PVP/CeO2/MnO2 nanostructures have been studied. The optical properties of PEO/PVP/CeO2/MnO2 nanostructures were studied in the wavelength range (220-720) nm. The results demonstrated that improvement in the structure and optical characteristics with the increase in CeO2/MnO2 NPs. The absorbance increased about 51% while the optical conductivity increased with about 33% with adding of 4.5 wt.% CeO2/MnO2 NPs, this behavior make it use in photodegradation of organic dyes. The refractive index, transmittance, energy gap and real dielectric constants of blend are changed with the increase in CeO2/MnO2 NPs, this behavior is suitable to use in low cost and electronics and optics devices. The allowed and forbidden energy gap of PEO/PVP blend decreased about 45% and 35% respectively with adding of 4.5 wt.% CeO2/MnO2 NPs. The results of photodegradation displayed excellent activity against organic pollutants.