Electrospun Flexible Coaxial Nanoribbons Endowed With Tuned and Simultaneous Fluorescent Color-Electricity-Magnetism Trifunctionality

Abstract

In order to develop new-typed multifunctional nanocomposites, fluorescent-electrical-magnetic trifunctional coaxial nanoribbons with tunable fluorescent color, including white-light emission, have been successfully fabricated via coaxial electrospinning technology. Each stripe of coaxial nanoribbon is composed of a Fe3O4/PMMA core and a [Eu(BA)3phen+Dy(BA)3phen]/PANI/PMMA (PMMA = polymethyl methacrylate, BA = benzoic acid, phen = phenanthroline, polyaniline = PANI) shell. X-ray diffractometry (XRD), field emission scanning electron microscopy (FE-SEM), biological microscopy (BM), vibrating sample magnetometry (VSM), energy dispersive spectrometry (EDS), Hall effect measurement system and photoluminescence (PL) spectroscopy were employed to characterize the coaxial nanoribbons. Emitting color of the coaxial nanoribbons can be tuned by adjusting the contents of Dy(BA)3phen, Eu(BA)3phen, PANI and Fe3O4 in a wide color range of blue-white-orange under the excitation of 273-nm single-wavelength ultraviolet light. The coaxial nanoribbons simultaneously possess excellent luminescent performance, electrical conduction and magnetism compared with the counterpart composite nanoribbons. Furthermore, the electrical and magnetic performances of the coaxial nanoribbons also can be tunable by adding different quantities of PANI and Fe3O4 nanoparticles, respectively. The obtained coaxial nanoribbons have promising applications in many areas, such as electromagnetic interference shielding, microwave absorption, molecular electronics, biomedicine, future nanomechanics and display fields.

Structural design toward functional materials by electrospinning: A review

“…The design of the doublelayer structure avoids the adverse effects of conductive and magnetic substances on luminescent substances. However, with the deepening of research, we realize that when magnetic substances are mixed with conductive substances, the magnetic particles will affect the continuity of conductive molecular chains of conductive polymers (101)(102)(103), thus affecting the conductivity of materials. How to design a special structure to avoid the adverse effects when different substances are mixed has become one of the hot spots, which will also be discussed in the following parts.…”

Recent Advances in the Synthesis of Metal Oxide Nanofibers and Their Environmental Remediation Applications

“…It has many advantages such as simple and straightforward setup, easy mass production of continuous nanofibers from numerous polymers, and, most interestingly, the ability to produce ultrathin fibers with tunable diameters, compositions, and alignments [57]. This flexibility permits the shape controllability and organization of the fibers on any collector or even in the form of free-standing fibers so that many different structures such as hollow, core-shell, flat ribbon, and even spherical particles shaped by electrospraying can be fabricated on demand to meet the desired application requirements [58][59][60]. Those special nanofiber structures and textures can be exploited in various advanced applications such as energy storage, gas sensors and biosensors, nanofluidics, catalysis and photocatalysis, drug delivery and release, catalytic nano supports, etc.…”

A review on electrospun magnetic nanomaterials: methods, properties and applications

“…Additionally, polymers can guide the assembly of Fe 3 O 4 NPs to form novel structures. 14,33,[63][64][65][66][67][68][69][70] Since polymeric materials can encapsulate and bind the nanoparticles as a matrix, research groups mix polymer materials with Fe 3 O 4 NPs by uniaxial electrospinning, coaxial electrospinning and parallel-plate electrospinning. The method of electrospinning used affects the structure and properties of the composite material.…”

“…69 In order to circumnavigate this problem, coreshell and Janus structures have been produced as they offer the opportunity to incorporate both components in disparate zones of the material; minimising the direct interactions that would typically occur between them. Shao et al 64 reported the fabrication of tuneable fluorescent colour-electrical-magnetic trifunctional coaxial nanoribbons using coaxial electrospinning. These coaxial nanoribbons exhibited similar magnetic properties (M s of 18.58 emu g À1 ) to the corresponding composite nanoribbons (where all components were mixed within the ribbons).…”