Synthesis and Characterization of Ultrafine and Porous Structure of Magnesium Ferrite Nanospheres
Journal: International Journal of Nano Studies & Technology (IJNST) (Vol.03, No. 06)Publication Date: 2014-12-11
Authors : M. Penchal Reddy; X. B. Zhou; Q. Huang; R. Ramakrishna Reddy;
Page : 72-77
Keywords : MgFe2O4 Nanospheres; Hydrothermal method; Porous structure; Magnetic properties; Electron microscopy;
Abstract
Porous sphere-shaped magnesium (MgFe2O4) spinel ferrite particles were synthesized with high yields, crystallinity and purity through an easy, quick, reproducible and low-temperature hydrothermal synthesis route starting from an aqueous suspension of coprecipitated metal oxalates. The structural and morphological properties of the prepared materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, infrared spectroscopy and N2 adsorption?desorption measurement. Results show that the obtained MgFe2O4 particles are nearly spherical in shape and about 100-250 nm in mean diameter. Every magnetic microsphere is made of many ultrafine MgFe2O4 nanoparticles and porous in structure. The obtained sphere-shaped products exhibited a saturation magnetization of 70.25 emu/g and a coercivity of 326.41 Oe at room temperature.
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