Rapid, High-Yield Aqueous Synthesis of Ultrafine Magnetite Nanoparticles from Fe(III) Precursor at Room Temperature

Journal of Materials Science 2024
Andris Šutka, Sanda Bitina, Krisjanis Smits, Anna Šutka, Liga Bikse, Mikhail Maiorov, Tanel Käämbre, Martin Timusk, Lauma Laipniece, Kristīne Lazdoviča

The magnetite Fe3O4 nanoparticles have a broad range of applications due to the combination of specific magnetic and electrical properties. It is important to develop synthesis approaches where magnetite nanoparticles can be obtained from cheap precursors in large quantities rapidly. Herein, we report a straightforward process for synthesizing magnetite from Fe(III) chloride precursor. NaBH4-assisted precipitation of ferric chloride provides stoichiometric Fe3O4 nanoparticles within 1 minute. The obtained particles exhibit superparamagnetic behavior with saturation magnetization of as high as 55.4 emu/g. The simple addition of surfactant cetrimonium bromide to the synthesis mixture allows to reduce crystallite sizes and enhance the magnetic properties even further.

DOI
10.1007/s10853-023-09233-5
Hyperlink
https://link.springer.com/article/10.1007/s10853-023-09233-5

Šutka, A., Bitina, S., Smits, K., Šutka, A., Bikse, L., Maiorov, M., Käämbre, T., Timusk, M., Laipniece, L., Lazdoviča, K. Rapid, High-Yield Aqueous Synthesis of Ultrafine Magnetite Nanoparticles from Fe(III) Precursor at Room Temperature. Journal of Materials Science, 2024, Vol. 59, No. 2, pp.447-457. ISSN 0022-2461. Available from: doi:10.1007/s10853-023-09233-5

Publication language
English (en)