Publications

Pure, Fe3+, and Mn2+ doped CdO nanoparticles were prepared by the wet co-precipitation technique. The crystal structure, vibrational modes, and morphology of the CdO nanoparticles were studied using X-ray powder diffraction (XRD), Fourier transmission infrared spectroscopy (FTIR), and transmission electron microscopy (TEM), respectively. XRD and TEM studies showed a reduction in the lattice parameters and particle size relative to the pure sample, respectively. The Cd-O vibration bands were detected by the FTIR analysis. The photoluminescence spectra showed deep-level blue and violet emissions attributed to Cd vacancies. The energy band-gap obtained from UV-visible spectroscopy (UV-Vis) was enhanced with the transition metal (T-M) ions substitutions. The M-H measurements showed a transition from diamagnetic to ferromagnetic behaviours as an effect of T-M substitution. Accordingly, this study reveals that the magneto-optical properties of CdO nanoparticles can be tuned by substitution with different transition metal ions, allowing for different applications such as magnetically recyclable photocatalysts and spin-valve devices.