期刊
JOURNAL OF NANOPARTICLE RESEARCH
卷 15, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1007/s11051-013-1539-z
关键词
Electrospinning; Magnetism; Photoluminescence; Bistrand-aligned composite nanofibers bundles; Nanofibers
资金
- National Natural Science Foundation of China [NSFC 50972020, 51072026]
- Ph.D. Programs Foundation of the Ministry of Education of China [20102216110002, 20112216120003]
- Science and Technology Development Planning Project of Jilin Province [20070402, 20060504]
- Key Research Project of Science and Technology of Ministry of Education of China [207026]
- Twelve-Five Scientific Research Planning Project of the Education Department of Jilin Province [2012-194]
Fe3O4/PVP//Eu(BA)(3)phen/PVP magnetic-photoluminescent bifunctional bistrand-aligned composite nanofibers bundles based on ferroferric oxide(Fe3O4) nanoparticles and europium complex Eu(BA)(3)phen (BA = benzoic acid) were fabricated via electrospinning by employing a homemade parallel axial electrospinning setup with the side by side dual spinnerets for the first time. The structures, morphology, and properties of the as-prepared products were investigated in detail by X-ray diffraction, field-emission scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy (TEM), a fluorescence spectrometer, and a vibrating sample magnetometer. SEM analysis showed the average diameter of the individual-strand fiber of the bistrand-aligned composite nanofibers bundles was 200 +/- 25 nm. TEM image demonstrated that Fe3O4 nanoparticles were only dispersed into one strand of the bistrand-aligned composite nanofibers bundles, and the average diameter of Fe3O4 nanoparticles was about 15 nm. Under the excitation of 274 nm ultraviolet light, Fe3O4/PVP//Eu(BA)(3)phen/PVP bistrand-aligned composite nanofibers bundles exhibited red emissions of predominant peaks at 592 and 616 nm, which were respectively attributed to the D-5(0) -> F-7(1) and D-5(0) -> F-7(2) transitions of Eu3+ ions. The fluorescence intensity of the bistrand-aligned composite nanofibers bundles was higher than that of Fe3O4/Eu(BA)(3)phen/PVP composite nanofibers, and was decreased with the increase of the amounts of Fe3O4 nanoparticles. The saturation magnetizations of the bistrand-aligned composite nanofibers bundles and the Fe3O4/Eu(BA)(3)phen/PVP composite nanofibers were about equal when the two nanostructures contained the same mass ratios of Fe3O4 nanoparticles, but the saturation magnetizations of the bistrand-aligned composite nanofibers bundles were increased with the increase of the amounts of Fe3O4 nanoparticles. The new type Fe3O4/PVP//Eu(BA)(3)phen/PVP bistrand-aligned composite nanofibers bundles have potential applications in many fields due to their superparamagnetism behavior and high fluorescence intensity. Meanwhile, the research results will provide a new method for the preparation of the other two components of polymer fibers.
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