Please use this identifier to cite or link to this item: http://essuir.sumdu.edu.ua/handle/123456789/37177
Title: Nanomagnetite Synthesis via Co-precipitation of Iron Salts by Potassium and Ammonium Hydroxides
Authors: Dudchenko, N.O.
Brik, A.B.
Stych, O.I.
Keywords: Nanoparticles
Magnetite
Magnetic Properties
Saturation Magnetization
Issue Year: 2014
Publisher: Sumy State University
Citation: Proc. NAP 3, 01MFPM02 (2014)
Abstract: Magnetite nanoparticles were synthesized via co-precipitation of iron (II) and iron (III) salts by potassium hydroxide or ammonium hydroxide in aqueous solution at 80°C and their properties were compared. Magnetic properties of obtained magnetite nanoparticles were investigated by magnetometry method. It was shown, that precipitation by potassium hydroxide leads to decrease of saturation magnetization of obtained nanoparticles (not exceeding 40 A*m2/kg) in comparison with natural magnetite saturation magnetization (~90 A*m2/kg). At the same time, saturation magnetization of nanoparticles, obtained via co-precipitation by ammonium hydroxide was much higher (up to 60 A*m2/kg). Such degree of saturation magnetization of synthesized magnetite nanoparticles makes them promising for different medical-biological applications (enzyme and protein immobilization, cells separation and purification, DNA purification, magnetic resonance imaging contrast enhancement, targeted drug delivery, etc.).
URI: http://essuir.sumdu.edu.ua/handle/123456789/37177
Type: Article
Appears in Collections:Наукові видання (ЕлІТ)

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