A novel NiO-CuO nanocomposite has been synthesized by a sol-gel method based on polymeric network of polyvinyl alcohol (PVA). In this work mixed solvent of 50:50 ethanol water was used to dissolve cupric nitrate, nickel nitrate and PVA. The mixture was heated to 80OC to form a homogeneous gel solution. The obtained gel was slowly heated to evaporate the solvent to form a hard homogeneous gel. The hard gel was calcinated at temperature 600OC for 4 hours and 6 hours and converted into nanocomposite. The prepared nanocomposites have been characterized using X-Ray Diffraction (XRD), FTIR, UV-VIS. In the observed spectral features, the peak position, intensity and bandwidth were related to some structural properties of investigated samples. The size of NiO-CuO nanocomposites heated at 600O C for 4 hours and 6 hours using Scherrer Formula comes out to be 17.1 nm and 21.2 nm. Size of NiO-CuO nanocomposites increases with increase in temperature. Infrared spectroscopy is also used to determine presence of various functional groups. XRD revealed the polycrystalline structure of the nanocomposite. NiO-CuO nanocomposites shows increase in absorption when it goes from UV region to visible region. SEM gives the morphology of the nanocomposites.
