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Short Paper | Special issue | Vol 93, No. 1, 2016, pp.453-464
Published online, 17th November, 2015
DOI: 10.3987/COM-15-S(T)58
■ Comparing the Extraction of Am(III), Cm(III) and Eu(III) by CyMe4-BTPhen-Functionalized Silica and Zirconia-Coated Magnetic Nanoparticles

James Westwood, Ashfaq Afsar, Laurence M. Harwood,* Michael J. Hudson, Jan John, and Petr Distler

*School of Chemistry, University of Reading, Whiteknights, Reading, Berkshire, RG6 6AD, U.K.

Abstract

Herein, we report the synthesis of CyMe4-BTPhen-functionalized zirconia-coated (ZrO2) maghemite (γ-Fe2O3) magnetic nanoparticles (MNPs) and their ability to extract Am(III) from Eu(III) and Am(III) from Cm(III) in a range of HNO3 concentrations (0.001 – 4 M). Their extraction behavior is compared to our previously tested model based on silica-coated (SiO2) MNPs. Extraction of Am(III) and Eu(III) is reported, but little or no selectivity can be seen between Am(III) and Cm(III) at concentrations of 4 M HNO3.