Influences of SiO2 Nanoparticle Doping on Optical and Structure Behavior of UHMWPEO/Cu/Ag Nanocomposites

Document Type : Research Paper


Department of Physics, College of Science, University of Babylon, Iraq


In the present work, we developed the optical and structural properties of a novel polyethylene oxide copolymer (UHMWPEO), copper nanoparticles (CuNPs), and silver nanoparticles (AgNPs) composite by loading different concentrations of silica (SiO2) using the classical casting method. Various ratios of silica (0.05, 0.07, and 0.09% wt.%) were loaded in this progress, and the resulting films were examined using a UV-Visible spectrophotometer and FESEM. The optical characteristics of these films were examined in the 190–1100 nm optical range. The results show that nearly 90% of the UV radiation was stopped when silica reached 0.09 wt.%; furthermore, other optical parameters were enhanced after loading, and this property makes these films suitable for use in electronic devices. FFSEM confirmed the transformation of shape from spherical-like to flower-like in the silica ratio of 0.07 wt.%, and this transformation encourages the use of these films in drug delivery systems and energy storage. The surface morphology and homogeneity were also enhanced after the additions.