structure, magnetic, and optical properties of nife2o4 nanoparticle doped on the surface of carbon nanotube as a substrate

In this research, we investigate the effect of carbon nanotubes (cnts) as a substrate on the morphology, size, magnetic behavior, and band gap energy (eg) of nickel ferrite nanoparticles. synthesis of nife2o4 nanoparticles carried out using a direct co-precipitation method in aqueous solution containing carbon nanotubes. the samples were characterized using x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem), uv-visible spectrophotometer, and vibrating sample magnetometer (vsm). the results showed that using the cnt as a supporter reduced the size and band gap energy of nife2o4 nanoparticles, changed the morphology of the powder from an aggregate state to a filament state and it increased the magnetic saturation properties of nanoparticles.