Abstract
Montmorillonite particles were modified by iron oxides using the precipitation process with the aim to monitor the differences in the structural and magnetic properties of intercalated and adsorbed Fe 3+. The Mössbauer spectra recorded at 5 K in zero and 6 T external fields, IR spectra and TG curves measured in zero and 32 mT fields identified the ferrihydrite pillars in an interlayer space of the montmorillonite structure and γ-Fe 2 O 3 nanoparticles adsorbed on the mineral surface. The temperature dependent Mössbauer spectra (25-300 K) reflect the superparamagnetic behaviour of maghemite nanoparticles and ferrihydrite pillars with the blocking temperatures of about 80 and 25 K, respectively.
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CITATION STYLE
Bartonkova, H., Mashlan, M., Zboril, R., Pechousek, J., Schneeweiss, O., & Martinec, P. (2007). Mössbauer study of iron oxide modified montmorillonite. In ICAME 2005 (pp. 221–225). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-49850-6_32
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