Synthesis and performance of organic-coated magnetite particles

Polymeric-coated magnetite particles with an adsorbed layer of extractant have been synthesized and are being evaluated for application in the separation and recovery of low concentrations of europium from water solutions. Physical characterizations of the extractant adsorbed particles were performe...

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Bibliographic Details
Published in:Journal of alloys and compounds 2002-10, Vol.344 (1), p.152-156
Main Authors: Yamaura, M, Camilo, R.L, Felinto, M.C.F.C
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption isotherm
Applied sciences
Chemistry
Europium
Exact sciences and technology
General and physical chemistry
General purification processes
Magnetic particles
Magnetic resin
Metal removal
Pollution
Surface physical chemistry
Wastewaters
Water treatment and pollution
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Summary:Polymeric-coated magnetite particles with an adsorbed layer of extractant have been synthesized and are being evaluated for application in the separation and recovery of low concentrations of europium from water solutions. Physical characterizations of the extractant adsorbed particles were performed by X-ray diffractometry, Scanning Electron Microscopy and FT-IR spectrometry. Metal separations have been performed at various HNO 3 concentrations. Separation efficiency of the polymeric magnetic particles and the equilibrium adsorption isotherm of europium were investigated. Moreover, the magnetic field effect in the separation using a magnet was also verified.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(02)00356-0