Influence of Al2O3/NbO2 Nanostructures on Optical Properties of PVA/PVP Blend for Biomedical Application

Sroor Fadhil Obaid; Raheem G. Kadhim

doi:10.53730/ijhs.v6nS9.12169

Authors

Sroor Fadhil Obaid Department of Physics, College of Science, University of Babylon, Iraq
Raheem G. Kadhim Department of Physics, College of Science, University of Babylon, Iraq

Keywords:

niobium oxide, alluminium oxide, Nanocomposites, Optical, antibacterial activity

Abstract

In this research, the optical and structural properties of nanocomposites (PVA-PVP-Al2O3-NbO2), as well as antibacterial activity, were studied. The optical properties of nanocomposites (PVA-PVP-Al2O3-NbO2) were studied in the wavelength ranging from (220-820) nm. The FTIR spectra showed a shift in the position of the peak in addition to the change in shape and intensity, in comparison to (PVA-PVP) films that are completely pure and this indicates the corresponding vibrations of polymers, corundum nanoparticles, and niobium oxide, and it was observed that there was a decrease in transmittance when the proportion of corundum nanoparticles and niobium oxide was increased. The optical microscopy images showed that the nano-alluminium and nano-niobium oxide are homogeneously distributed in the polymeric mixture. Experimental results showed that an increase in the weight percentage of aluminum oxide particles leads to increases in the absorption (A), the absorption coefficient (α), the refractive index (n), damping coefficient (k), the real and imaginary dielectric constants and the optical conductivity for the (PVA-PVP) mixture. While the energy gap of the PVA-PVP mixture decreased when the quantities of corundum nanoparticles increase and nibium oxide nanoparticles.

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