A simple synthesis and the magnetic properties of egg white solution-assisted hydrothermally prepared magnetite (Fe3O4) nanoparticles. (8th March 2021)

• Record Type: Journal Article
• Authors: Phumying, Santi; Sonsupap, Somchai; Wongpratat, Unchista; Kidkhunthod, Pinit; Maensiri, Santi
• Is Part Of: Japanese journal of applied physics. Volume 60:Number SC(2021)
• Publication Date: 2021-03-08
• Subjects: Magnetite -- Hydrothermal -- Nanoparticles -- Magnetic properties -- Electron microscopy -- Egg white solution; Physics -- Periodicals; 621.05
• DOI: 10.35848/1347-4065/abe800
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: We report magnetite (Fe3 O4 ) nanoparticles synthesized by the hydrothermal method in egg white solution. The egg white solution is a good surfactant which can also reduce the phase impurities in the prepared products. The structure and magnetic properties of the synthesized samples were studied as a function of calcination temperatures. The samples were characterized by X-ray diffraction and selected area electron diffraction which indicates the cubic spinel ferrite structure without any other phase impurities in all synthesized Fe3 O4 nanoparticles. The particle sizes ranging from 5 to 50 nm were observed by transmission electron microscopy. The X-ray absorption near edge structure spectra show the Fe 3+ /Fe 2+ mixed oxidation states in all samples. The hysteresis loops at room temperature were detected in the Fe3 O4 nanoparticles suggesting the ferrimagnetic behavior. A positive correlation was found between reaction temperature and saturation magnetization.