Abstract
Nanocomposites containing iron oxides and humic acids were studied by Mössbauer and magnetic measurements. The concentrations of humic acids as the precursor in nanocomposites were varied. Mössbauer investigations were carried out at temperature range from room temperature to 5 K. The magnetization M(T, H) was measured in the temperature interval 80–300 K and magnetic field up to 10 kOe. It was found that particles of investigated nanocomposites exhibit superparamagnetic properties. The core of the nanocomposite was a mixture of non-stoichiometric magnetite and maghemite. The “iron-polymer” interface was formed on the surface of the iron oxide particles.
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Proceedings of the 32nd International Conference on the Applications of the Mössbauer Effect (ICAME 2013) held in Opatija, Croatia, 1–6 September 2013
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Chistyakova, N.I., Shapkin, A.A., Gubaidulina, T.V. et al. Mössbauer and magnetic studies of nanocomposites containing iron oxides and humic acids. Hyperfine Interact 226, 153–159 (2014). https://doi.org/10.1007/s10751-013-0952-0
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DOI: https://doi.org/10.1007/s10751-013-0952-0