In:
Journal of Nanomaterials, Hindawi Limited, Vol. 2017 ( 2017), p. 1-10
Abstract:
Fe 2 O 3 nanoparticles (as maghemite and hematite mixtures) were prepared using adapted sol-gel method from a polyvinylpyrrolidone (PVP) aqueous solution in various Fe 3+ : PVP monomer ratios. Analysis of X-ray diffraction was obtained to evaluate the crystalline state, average crystallite size, and composition of iron oxide phases. The morphology and average nanoparticles size were evaluated by electronic transmission microscopy. Magnetic properties of iron oxide were analyzed at low and room temperatures. Optical characteristics were evaluated by UV-Vis photoacoustic spectroscopy and the Mössbauer spectrum was obtained in order to evaluate subtle changes in the nuclear environment of the iron atoms.
Type of Medium:
Online Resource
ISSN:
1687-4110
,
1687-4129
DOI:
10.1155/2017/7939727
Language:
English
Publisher:
Hindawi Limited
Publication Date:
2017
detail.hit.zdb_id:
2229480-6
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