Facile preparation of multifunctional Fe3O4@SiO2@LaVO4:Eu3+ nanocomposites as potential drug carriers
Abstract In this paper, novel Fe 3 O 4 @SiO 2 @LaVO 4 :Eu 3+ composites were successfully synthesized with a two step method. Their structure and properties were analyzed and discussed. The as synthesized nanocomposites displayed well defined core shell structures. The particle size of the composites is about 200 nm which consists of the magnetic core with about 180 nm in diameter and a silica shell with an average thickness of about 20 nm. Significantly, the composites exhibited a high saturation magnetization (29.40 emu g 1 excellent luminescence properties and high specific surface area (34.03 m 2 g 1 which endow the nanoparticles with great potential applications in drug targeting, bioseparation and diagnostic analysis.