Sonochemical syntheses of a nanoparticles cadmium(II) supramolecule as a precursor for the synthesis of cadmium(II) oxide nanoparticles

Nanoparticles of a three-dimensional supramolecular Cd(II) compound, [Cd(L)2(H2O)2] (1), (L− = 1H-1,2,4-triazole-3-carboxylate), have been synthesized by a sonochemical process and characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. The thermal stability of compound 1 in both its bulk and nano-size has been studied by thermal gravimetric (TG) and differential thermal analyses (DTA) and compared with each other. Concentration of initial reagents effects on size and morphology of nano-structured compound 1, have been studied. Calcination of the single crystals and nano-sized compound 1 at 650 °C under air atmosphere yields CdO nanoparticles.

► Nanoparticles of a 3D Cd(II) supramolecular compound was synthesized.
► Particle sizes of the nanoparticles depend on the concentration of initial reagents.
► High concentrations of initial reagents increased particles size of compound. 1
► Calcination of the compound 1 at 650 °C yields CdO nanoparticles.