Preparation and magnetic research of ZnFe2O4 nanoparticles by carbon adsorption

With inorganic salt solution as the raw materials, ZnFe2O4 nanoparticles was successfully prepared by the carbon adsorption method.The samples were characterized by XRD, SEM and VSM. The XRD results show that the high purity ZnFe2O4 nanoparticles can be prepared at 500 °C. SEM observation reveals that the as-prepared ZnFe2O4 nanoparticles have a uniform particle size, and the particles are almost spherical without any agglomeration, the “S” shape hysteresis loops of ZnFe2O4 nanoparticles explain that the samples display superparamagnetic under room temperature.