Synthesis and characterization of nano-crystalline Ni-doped CoFe2O4 ferrite for biomedical applications

A polycrystalline ferrite sample of Co0.9Ni0.1Fe2O4 was successfully synthesized using the sol-gel auto-combustion process. The X-ray diffraction (XRD) analysis provided confirmation of the cubic phase spinel structure of the sample. To ensure the absence of any impurity phases, Rietveld refinement was conducted. The sample’s crystallite size, existing in the nano regime, was determined using the Debye-Scherer formula. Field Emission Scanning Electron Microscopy (FESEM) demonstrated the prepared sample’s spherical nature. Energy Dispersive Spectra (EDS) offered evidence of the elemental confirmation and purity of the synthesized nanoparticles. Additionally, the EDAX spectrum verified appropriate doping in the polycrystalline sample. Furthermore, the Fourier Transform Infrared Rays (FTIR) Spectrum, covering the range from 4000 cm−1 to 500cm−1, showcased a wide array of chemical interactions within the sample. The significance of this nano-crystalline Ni-doped CoFe2O4 ferrite lies in its biomedical applications, as it offers simplicity, cost-effectiveness, and reproducibility.