Abstract
AbstractBiogenic magnetite serve for a wide range of biological functions, including the orientation of animals in the space and also play an important role in the brain functioning. We describe the synthesis and characterization of magnetite nanoparticles that are the synthetic analogues of biogenic magnetite. Magnetite nanoparticles were prepared via co‐precipitation of iron (II) and iron (III) with sodium hydroxide in aqueous solution at high temperature (80°C). To avoid the oxidation of the magnetite surface, further covering of the magnetite nanoparticles with (3‐aminopropyl)triethoxysilane was performed. The obtained magnetite nanoparticles had a comparatively high magnetization (45 A·m2/kg) and crystallinity. The average diameter of synthesized magnetite nanoparticles was around 14 nm. We could conclude that the characteristics of the synthesized magnetite nanoparticles (size, phase composition, magnetic properties) are similar to biogenic magnetite.
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