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Synthesis and Characterization of Cobalt Substituted Zinc Ferrite Nanoparticles by Microwave Combustion Method
Sundararajan M, , Judith Vijaya J.
Published in American Scientific Publishers
2015
Volume: 15
   
Issue: 9
Pages: 6719 - 6728
Abstract
Pure and cobalt doped zinc ferrites were prepared by microwave combustion method using L-arginine as a fuel. The prepared samples were characterized by various instrumental techniques such as X-ray powder diffractometry, high resolution scanning electron microscopy (HR-SEM), energy dispersive X-ray analysis, Fourier transformed infrared (FT-IR) spectroscopy, photoluminescence spectroscopy and UV-Visible diffuse reflectance spectroscopy. Vibrating sample magnetometry at room temperature was recorded to study the magnetic behavior of the samples. X-ray analysis confirmed the formation of zinc ferrites normal spinel-type structure with an average crystallite sizes in the range, 25.69 nm to 35.68 nm. The lattice parameters decreased as cobalt fraction was increased. The HR-SEM images showed nanoparticles are agglomerated. The estimated band gap energy value was found to decrease with an increase in cobalt content (1.87 to 1.62 eV). Broad visible emissions are observed in the photoluminescence spectra. A gradual increase in the coercivity and saturation magnetization (Ms were noted at relatively higher cobalt doping fractions. Copyright © 2015 American Scientific Publishers All rights reserved.
About the journal
JournalData powered by TypesetJournal of Nanoscience and Nanotechnology
PublisherData powered by TypesetAmerican Scientific Publishers
ISSN1533-4880
Open AccessNo