What is it about?
In this study Mn-Zn ferrite nanoparticles were synthesized by the co-precipitation, using different pH for the precipitating solution and characterized by X-ray powder diffraction (XRD), X-ray fluorescence (XRF), thermal analysis (TA), dynamic light scattering (DLS) and scanning electron microscopy (SEM) techniques. The crystal structure was modeled using Rietveld analysis and the microstructure characterization was performed by Single-Line and Warren-Averbach methods to determine mean crystallite size, microstrain and crystallite size distribution.
Featured Image
Why is it important?
Manganese-zinc ferrites are key technological materials due to their unique properties, such as high initial magnetic permeability, high resistivity and low hysteresis loss. More recently, nanostructured Mn-Zn ferrites have been applied in medical procedures, such as magnetic carriers for bioseparation, enzymes and proteins immobilization and as marker in the diagnosis of several diseases. Magnetic and electrical properties of these nanoparticles are closely related to their crystal structure and microstructure, therefore, the characterization of their properties and behavior under temperature changes is of utmost importance.
Perspectives
It was possible to conclude that the pH of 10.5 is the better condition to prepare monophasic Mn-Zn ferrite nanoparticles. Using the lattice parameter obtained by Rietveld refinement, the Mn-Zn ferrite composition was estimated as Mn0.67Zn0.33Fe2O4. Nanosized particles were successfully obtained as confirmed by size-strain analysis using Single-Line and Warren-Averbach methods.
Rodrigo Uchida Ichikawa
Instituto de Pesquisas Energéticas e Nucleares
Read the Original
This page is a summary of: Characterization of Mn0.67Zn0.33Fe2O4 Nanoparticles Synthesized under Different pH, Materials Science Forum, July 2017, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/msf.899.48.
You can read the full text:
Contributors
The following have contributed to this page
