Study the Effect of Calcined Temperature on Structural, Optical and Magnetic Properties for Cobalt Ferrite Nanostructure

Ataa Jamal Mohammed

Suhad A. Hamdan

Keywords: CoFe2O4 Nanoparticle, Magnetic Properties, Hydrothermal Synthesis


In this work, CoFe2O4 nanostructure was synthesized from Cobalt and ferric nitrates and sodium hydroxide (NaOH) by hydrothermal method. Effect of heat treatment on the structural, optical, and magnetic properties of the resulting powder was studied at calcination 400°C and 600°C with different concentration of NaOH. The resulted products were characterized by X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), Fourier transformed infrared (FTIR), UV–Vis absorption, and vibrating sample magnetometer (VSM) technique as synthesis and when calcination at 400°C and 600°C with different concentration of NaOH. The absorption spectra show CoFe2O4 nanostructure absorb the ultra violet area. The high temperatures of the calcination process results in the reduction in crystallite size that their average crystallite size is found (11-14.26) nm. The FE-SEM images indicated that particles were agglomerated and spherical shape and size between (23.6 - 57.9) nm expect the morphology is clearly a structure nanorods at 3M at 400 oC. The created CoFe2O4 nanostructure have demonstrated ferromagnetic behavior for all the samples behavior which was found in VSM results examination.