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- Title
Coaxial electrospinning preparation and properties of magnetic-photoluminescent bifunctional CoFeO@YO:Eu coaxial nanofibers.
- Authors
Bi, Fei; Dong, Xiangting; Wang, Jinxian; Liu, Guixia
- Abstract
CoFeO@YO:Eu magnetic-fluorescent bifunctional coaxial nanofibers have been successfully obtained via calcination of the [CoFeO/PVP]@[(Y(NO) + Eu(NO))/PVP] composite coaxial nanofibers which were fabricated by coaxial electrospinning technique. The diameter of CoFeO@YO:5 %Eu magnetic-fluorescent bifunctional coaxial nanofibers was 133 ± 17 nm. Strong fluorescence emission peaks of Eu in the CoFeO@YO:Eu coaxial nanofibers were observed and assigned to D → F (588 nm), D → F (593 nm), D → F (599 nm), D → F (612 nm) and D → F (630 nm) energy levels transitions of Eu ions, and the predominant emission peak was located at 612 nm. Compared with CoFeO/YO:Eu composite nanofibers, CoFeO@YO:Eu magnetic-fluorescent bifunctional coaxial nanofibers simultaneously provided higher magnetism and fluorescent intensity. The color, photoluminescent intensity and magnetism of the coaxial nanofibers can be tuned via adjusting the diversity and content of fluorescent compounds and the content of magnetic compounds. Formation mechanism of CoFeO@YO:Eu coaxial nanofibers was also presented. The bifunctional magnetic-photoluminescent CoFeO@YO:Eu coaxial nanofibers have potential applications in many fields due to their excellent magnetism and fluorescence.
- Subjects
COBALT compounds; MAGNETIC properties of transition metal compounds; ELECTROSPINNING; NANOFIBERS; PHOTOLUMINESCENCE; MICROFABRICATION
- Publication
Journal of Materials Science: Materials in Electronics, 2014, Vol 25, Issue 10, p4259
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-014-2158-x