Preparation and properties of multifunctional Fe3O4 @YVO4:Eu3+ or Dy3+ core-shell nanocomposites as drug carriers
Abstract
In this study, the synthesis and characterization is reported for Fe3O4/YVO4:Eu3+ or Dy3+ luminomagnetic nanocomposites. The nanocomposites show a spherical morphology with size distribution around 250 nm. In addition, they exhibit relatively high magnetization (17.86 emu gā1) which can make the nanocomposites respond to an external magnetic field quickly and strong red emission (yellow green for Dy) under UV irradiation. The results also indicate that the nanocomposites may have potential applications for optical imaging or