Facile electrospinning construction and characteristics of coaxial nanobelts with simultaneously tunable magnetism and color-tuned photoluminescence bifunctionality

Autor: Lei Han, Qianli Ma, Hongjin Xue, Ji Han, Xiaopeng Sun, Jingwei Bi, Tian-yang Wang, Xiangting Dong
Rok vydání: 2015
Předmět:
Zdroj: Journal of Materials Science: Materials in Electronics. 26:8774-8783
ISSN: 1573-482X
0957-4522
DOI: 10.1007/s10854-015-3557-3
Popis: New-typed coaxial nanobelts with magnetism and tunable fluorescent color bifunctionality have been successfully fabricated by electrospinning technology using a specially designed coaxial-spinneret. The synthesized coaxial nanobelts are composed of CoFe2O4/polymethyl methacrylate (PMMA) as the magnetic core and [Tb(BA)3(phen) + Eu(BA)3(phen)]/PMMA (BA = benzoic acid, phen = 1,10-phenanthroline) as the photoluminescent shell. The morphology and properties of the final products have been investigated in detail by X-ray diffractometry, scanning electron microscopy, biological microscopy, vibrating sample magnetometry and fluorescence spectroscopy. The emitting color of the coaxial nanobelts can be tuned by adjusting the mass ratios of Tb(BA)3(phen) and Eu(BA)3(phen) in a wide color range from red to yellow to green under the excitation of 274-nm single-wavelength ultraviolet light. The luminescent intensity and magnetic property of the coaxial nanobelts can also be tuned. Furthermore, the coaxial nanobelts provide higher luminescent performance than CoFe2O4/[Tb(BA)3(phen) + Eu(BA)3(phen)]/PMMA composite nanobelts. This new type of magnetic and color-tunable bifunctional coaxial nanobelt has the potential to be applied in novel nano-biolabel materials, drug delivery materials, and future nanodevices owing to their excellent magnetic-fluorescent properties, flexibility, and insolubility.
Databáze: OpenAIRE
Externí odkaz: