Abstract
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 microfibers were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images. The diameters of pure PVP microfibers and the microfibers doped only with Fe3O4 nanoparticles (NPs) were uniformly distributed, with an average diameter of about 360 nm. When 3% Eu(DBM)3phen complex and Fe3O4 NPs were both added to the precursor for electrospinning, the microfibers became very inhomogeneous in diameter. The photoluminescent properties of pure Eu(DBM)3phen complex and composite microfibers were also studied. The characteristic emission peaks of Eu3+ appeared in the composite microfibers. The intensities of emission and excitation spectra gradually decrease with adding more Fe3O4 NPs. The unit mass of the pure europium complex in some composite microfibers gave stronger luminescence than the pure europium complex. The fluorescence lifetime of 5D0 state in the composite microfibers is longer than that of pure europium complex. Additionally, the magnetic properties of Fe3O4 NPs and the composite microfibers were investigated. The saturation magnetization of the composite microfibers was smaller than that of pure Fe3O4 NPs.
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Acknowledgements
The authors acknowledge the financial support from the National Natural Science Foundations of China (No. 51802139, 11905096 and 51801092), and the Natural Science Foundations of Henan province (No. 212102210312, 20B140009, 19A430020 and 21A140016).
Funding
The financial support from the National Natural Science Foundations of China, Grant No (51802139, 11905096 and 51801092). Natural Science Foundation of Henan Province, Grant No (18B140007, 20B140009, 19A430020 and 21A140016).
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Qin, R., Liu, L. Electrospinning synthesis of Fe3O4/Eu(DBM)3phen/PVP multifunctional microfibers and their structure, luminescent and magnetic properties. J Mater Sci: Mater Electron 32, 18741–18750 (2021). https://doi.org/10.1007/s10854-021-06393-5
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DOI: https://doi.org/10.1007/s10854-021-06393-5