Synthesis and characterization CuFe2O4 nanoparticles prepared by the hydrothermal ultrasonic assisted method

Copper ferrite nanoparticles were synthesized by hydrothermal ultrasonically assisted method using iron nitrate and copper nitrate as precursors in aqueous alkaline solution. Mixing process was performed using an immersed sonotrode in synthesis environment. Ultrasonic treatment was performed at 100 W/40 kHz during the hydrothermal synthesis at 200 degrees C and 40 barr for 2 hours. The synthesized nanoparticles were characterized by X-ray diffraction (XRD) that shows a high crystallization of degree for CuFe2O4 nanoparticles and their dimension is about 16 nm. The scanning electron microscopy analyses evidenced the presence of agglomerated quasi spherical nanoparticles of the copper ferrite and particles are almost spherical shape. The surface morphology of CuFe2O4 was performed by atomic force microscopy which revealed a clear topographic image of the nanosized CuFe2O4 powder and illustrates the particles with a narrow size distribution in the range of 15-18 nm. The magnetic measurements showed a superparamagnetic behavior of CuFe2O4 nanoparticles at room temperature. The specific magnetization values of the as-obtained powders are reached 29emu/g and the initial magnetic susceptibility is 0.04.