Sonochemical synthesis and characterization of new nanostructured ternary composites based on Mg, Zn, and Co
Résumé
A simple and rapid method for synthesizing new ternary nanocomposites based on Mg, Zn,
and Co has been developed using ultrasound technology. The nanocomposites were
characterized using structural, optical, and thermal methods. XRD diffraction confirmed
the formation of different crystalline nanocomposite phases (MgO, ZnO, and Co3O4) and
binary phase (MgeZn), while Raman spectroscopy and FTIR, identified the vibration modes
and provided information on functional groups and chemical bands present in samples.
SEM showed the octahedron-shaped nanoparticles morphology with different averages
size for the nanocomposites oxide prepared. Photoluminescence analysis showed the
presence of green, blue, and ultraviolet emissions, with green luminescence bands being
most often observed. Heat capacity and thermal diffusivity measurements were used to
study thermal properties.