کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1800599 | 1024540 | 2012 | 11 صفحه PDF | دانلود رایگان |
This manuscript deals with the synthesis of new hydrophilic magnetite particles by employing a two-step method: in the first step magnetite particles with hydrophobic shell formed in presence of oleic acid–oleylamine complex through a synthesis in mass, without solvent, in a mortar with pestle were obtained; while in the second step the hydrophobic shell was interchanged with an aminosilane monomer. The influence of the Fe2+/Fe3+ molar ratio on the dimension of the particles of high importance for their potential applications was carefully investigated. This paper, also presents an alternative method of synthesis of new core-shell magnetite particles and the complete study of their structure and morphology by FT-IR, XPS, TGA, ESEM and TEM techniques. The rheological properties and magnetization analysis of high importance for magnetic particles were also investigated.
► Magnetite particles are superparamagnetic materials.
► Magnetite has significant role in nanotechnology due to surface properties and applicability in physical and chemical processes.
► We used an ecological method of synthesis, a reaction in mass, without solvent, in a mortar with pestle.
► We prepared hydrophilic magnetite particles, precursors for biomedical applications.
Journal: Journal of Magnetism and Magnetic Materials - Volume 324, Issue 9, May 2012, Pages 1679–1689