Electrospinning synthesis of Fe3O4/Eu(DBM)3phen/PVP multifunctional microfibers and their structure, luminescent and magnetic properties

Multifunctional Fe3O4/Eu(DBM)3phen/PVP ((DBM: dibenzoylmethane, phen: 1,10-phenanthroline, PVP: polyvinyl pyrrolidone) microfibers were constructed by simple electrospinning process. The structure and morphology of the characterized X-ray diffraction (XRD), scanning electron microscopy (SEM) transmission (TEM) images. diameters pure PVP doped only with Fe3O4 nanoparticles (NPs) uniformly distributed, an average diameter about 360 nm. When 3% Eu(DBM)3phen complex NPs both added to precursor for electrospinning, became very inhomogeneous in diameter. photoluminescent properties composite also studied. characteristic emission peaks Eu3+ appeared microfibers. intensities excitation spectra gradually decrease adding more NPs. unit mass europium some gave stronger luminescence than complex. fluorescence lifetime 5D0 state is longer that Additionally, magnetic investigated. saturation magnetization was smaller