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

Abstract

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 CoFe 2 O 4 /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 CoFe 2 O 4 /[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.

Synthesis, Characterization and Photocatalytic Performance of SnS Nanofibers and SnSe Nanofibers Derived from the Electrospinning-made SnO2 Nanofibers

“…Double-crucible technique has been proved to be an efficient, convenient and simple way to fabricate nanofibers, nanobelts and hollow nanofibers 24 . Meanwhile, electrospinning is a promising, straightforward and convenient way to prepare one-dimensional (1D) nanomaterials [25][26][27] with diameters ranging from tens of nanometers up to micrometers owing to its easy control and low cost, including nanowires 28 , nanobelts [29][30][31] , core-shell structured nanofibers [32][33][34] core-shell structured nanotubes 40,41 , etc. Nevertheless, the fabrication of SnS or SnSe nanofibers via electrospinning combined with a double-crucible technique is not reported.…”

Synthesis and characterization of the novel color-tunable Eu/Tb(BPA)3phen composites

“…However, in the above mentioned co-luminescence system, the color of the emission light was single. Therefore, physically blended of the complexes with different RE (III) was conducted to realize multicolor [20,21]. In the previous literature [22,23], benzoic acid was widely used as the first ligand.…”

A new route to fabricate PbS nanofibers and PbSe nanofibers via electrospinning combined with double-crucible technique

“…Double-crucible technique has been proved to be an efficient, convenient and simple way to fabricate nanofibers, nanobelts and hollow nanofibers [24]. Meanwhile, electrospinning is a promising, straightforward and convenient way to prepare one-dimensional (1D) nanomaterials [25,26] with diameters ranging from tens of nanometers up to micrometers owing to its easy control and low cost, including nanofibers [27,28], core-shell structured nanofibers [29,30], core-shell structured nanotubes [31,32], nanowires [33], nanosheets [34,35] and nanobelts [36][37][38], etc. Nevertheless, the fabrication of PbS or PbSe nanofibers via electrospinning combined with a doublecrucible technique is not reported.…”