The Impact of the Preparation Procedure on the Structural, Optical, and Magnetic Characteristics of Nickel Ferrite Nanoparticles.
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Abstract
Nanocrystalline NiFe2O4 particles were synthesized using traditional sol-gel, citrate-nitrate sol-gel combustion, and coprecipitation techniques. The synthesized samples underwent annealing at a temperature of 1000 °C for two hours. Subsequently, an investigation was conducted to analyze the structural, chemical, morphological, optical, and magnetic properties of nickel ferrite. The X-ray diffraction (XRD) technique was used to analyze the structural properties, which validated the creation of single-phase NiFe2O4 particles using all three methods. The chemical characteristics were assessed using Fourier transform infrared (FT-IR) spectroscopy, which verified the presence of the correct vibration modes in the samples. The UV-Vis spectroscopy technique was used to investigate the optical characteristics. The as-synthesized materials were analyzed using scanning electron microscopy (SEM) to determine their morphology. The scanning electron microscopy (SEM) scans revealed the presence of clustered nanoparticles of NiFe2O4. The magnetic characteristics were examined using a vibrating sample magnetometer (VSM), which revealed that the calcined samples had characteristic magnetic behavior.