Synthesis of Novel BTPhen-Functionalized Silica-Coated Magnetic Nanoparticles for Separating Trivalent Actinides and LanthanidesThe authors acknowledge the UK Engineering and Physical Sciences Research Council (grant No. EP/M026485/1) and the Grant Agency of the Czech Technical University in Prague (grant No. SGS15/216/OHK4/3T/14) for financial support (A.A. and P.D., respectively).
Received: 05 June 2017
Accepted after revision: 13 July 2017
17 August 2017 (eFirst)
Dedicated to Victor Snieckus, a valued friend and colleague, on the occasion of his 80th birthday
Bis-(1,2,4-triazin-3-yl)-1,10-phenanthroline (BTPhen) functionalized magnetic nanoparticles (MNPs), which selectively extract Am(III) over europium(III) from 0.1 M HNO3 with fast kinetics and a separation factor of 30 have been synthesized. These MNPs also show a small but significant selectivity for Am(III) over Cm(III) with a separation factor of around 3 in 0.1 M HNO3. We report also the synthesis of these BTPhen and related ligands via an improved synthetic route bypassing the problematic benzylic oxidation with stoichiometric SeO2.