Effect of heat treatment on structural,morphological, dielectric and magnetic properties of Mg–Zn ferrite nanoparticles |
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| Affiliation: | 1. Department of Physics, Emerald Heights College for Women, Ooty, The Nilgiris, 643006, Tamil Nadu, India;2. Nanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, U.P, India;3. Department of Physics, KPR Institute of Engineering and Technology, Coimbatore, 641 407, Tamil Nadu, India;4. Department of Physics, Government Arts and Science College, Avinashi, 641654, Tamil Nadu, India;5. Nanomaterials and Nanomagnetism Research Laboratory, Department of Physics, Sasi Institute of Technology& Engineering, Tadepalligudem, 534101, Andhra Pradesh, India;6. Department of Physics, Dr. N.G.P. Institute of Technology, Coimbatore, 641 048, Tamil Nadu, India;7. Department of Physics, Andhra University, Visakhapatnam, 530 003, Andhra Pradesh, India;8. Engineering Department, American University of Iraq-Sulaimani, P.O.Box 46001, Sulaimani, Kurdistan, Iraq;9. Department of Mechatronics Engineering, Faculty of Engineering and Natural Sciences, Bahcesehir University, 34349, Besiktas, Istanbul, Turkey |
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| Abstract: | Green combustion was used to prepare a ferrite composition of Mg0.4Zn0.6Fe2O4 using a blend of fresh lemon juice as a natural fuel-reductant. Effect of heat treatment on phase, morphological, dielectric, and humidity sensor properties is discussed. The formation of a cubic spinel ferrite has been established by XRD-diffraction and vibrational spectroscopic studies. The experimental lattice parameter ranges from 8.3721 to 8.3631 Å. The broadening of octahedral band (υ2) in the vibrational spectra is an identification for the existence of ferrite nanoparticles in various sizes. The typical crystallite size ranges from 10.2 to 36.9 nm. Using micrographs obtained from field-effect scanning electron microscopy (FESEM), researchers observed a spherical-shaped microstructure with agglomerated nanoparticles. Dielectric investigations have shown that the current ferrite composition has typical dielectric dispersion. The highest reported value for saturation magnetization (Ms) in the present study is 33 emu/g. Magnetic behaviour is primarily influenced by magnetocrystalline anisotropy, cation distribution, and crystallite size. The existence of void spaces in the sintered samples, as well as their porous nature, rendered them suitable for humidity sensor applications. Sintered samples have good sensing capability at 900 °C. The current findings are integrated in terms of cation distribution and magnetocrystalline anisotropy, assuming fine size effects of ferrite nanoparticles. |
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| Keywords: | Nanostructures Lemon assisted synthesis Phase evaluation FESEM Humidity sensor |
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