Abstract
The MgO-CuO nanocomposites has been synthesized by a sol-gel techniques based on precursor polyvinyl alcohol (PVA). In this work appropriate concentration of cupric nitrate, Magnisium nitrate and PVA are mixed with 50:50 ethanol water followed by heated to 80°C to form a homogeneous gel solution. The obtained gel was slowly heated at 100°C to evaporate the solvent to form a hard homogeneous gel. The hard gel was calcinated at temperature 600°C for 4 hrs and 6 hrs thereafter, crushed the material in agate-motar so that it is converted into fine powder form. The prepared nanocomposites have been characterized using X-Ray Diffraction (XRD), FTIR, UV-VIS spectroscopy, SEM etc. The size of MgO-CuO nanocomposites heated at 600°C for 4 hours and 6 hours evaluated by Debye Scherrer formula are 17.1 nm and 21.2 nm respectively and results show that Size of MgO-CuO nanocomposites increases with increase of calcinations durations. IR spectra is also used to determine purity of samples. Absorption spectra confirm the synthesis of nanomaterials. SEM images give the indication of morphology of the nanocomposites.
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