Magnetic zinc substituted nickel ferrite Nanoparticles synthesized by Sol-Gel

The sol-gel method was used to produce nanoparticles of nickel ferrite. The brown powders were sintering at the temperature of 800˚C for 24 hrs. The ferrite nanoparticles were determined by X-ray diffraction (XRD). The structural characteristics of calcined sample of Ni1-x Znx Fe2 O4 (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5).The FT-IR analyzed the functional group. The prepared samples have cubic structure and crystalline size decreases from 25-55nm calculated using Debye’s Sherrer formula. The preparation method investigated brought about formation of Nickel ferrite single phase. TG/DTA measurement showed the weight loss between 0-200˚C, 200-400˚C and 400-600˚C which corresponding the endothermic and exothermic processes. An exothermic peak observed at around 400˚C is due to the thermal decomposition of the ingredients to form Ni Fe2O4. The Vibrating Sample Magnetometer was used to obtain the Hysteresis parameters. The saturation magnetization value is 0.2 emu/g to 0.7emu/g for the sample sintered at 800˚C.