Abstract
Glass system, with the following chemical composition xCuO∙(100-x)PbO2 where x = 0, 5, 8, 10, 15, 20 mol% CuO, was successfully prepared using the melt-quenching technique. X-ray diffraction pattern indicated the amorphous structure for all samples. Density and molar volume were determined to evaluate the physical properties of the glasses. The evolution of the endothermic and exothermic process as CuO function was investigated by thermal analyses. The structural modifications induced by the incorporation of CuO in the lead host network were investigated by Fourier Transform Infrared, Raman, Ultraviolet-Visible and Electron paramagnetic resonance. The obtained results depicted the incorporation of Cu2+ ion enhances thermal stability and glass-forming ability of the lead glass. Furthermore, X-ray diffraction, Scanning electron microscopy and energy dispersive X-ray analysis confirm high solubility of MoO3 in copper-lead host matrix. It was found that copper-lead dioxide host matrix is a suitable as waste form for radioactive waste management applications to improve the solubility of MoO3 in glass.
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