Effect of Nano CuO Doping on Structural, Thermal and Optical Properties of PVA/PEG Blend

Copper oxide (CuO) nanoparticles were synthesized by sol gel method. Copper oxide/polyvinyl alcohol/polyethylene glycol (CuO/PVA/PEG) doped blends with concentrations (3%, 5%) of CuO nanoparticles were prepared by casting technique. X-ray diffraction data (XRD) and Fourier transform infrared (FTIR) techniques confirmed the formation of new-doped nano-blends. The absorption spectra revealed an apparent change with doping concentration. Different optical parameters were discussed in detail and proved to be directly affected by nanoparticles doping concentrations. The energy gap values for polymer blends decreased from 5.3 to 4.7 eV with the addition of CuO nanoparticles. The study of the effect of CuO nanoparticles incorporation in (PVA/PEG) blends has attracted a little interest in the literature; therefore, this study is considered as a new research one.