Magnetic-Electrospinning Synthesis of γ-Fe2O3 Nanoparticle–Embedded Flexible Nanofibrous Films for Electromagnetic Shielding

Zheng, Jie; Sun, Baode; Wang, Xiaoxiong; Cai, Ze-Xing; Ning, Xin; Alshehri, Saad M.; Ahamad, Tansir; Xu, Xingtao; Yamauchi, Yusuke; Long, Yun-Ze

doi:10.3390/polym12030695

Cited by 19 publications

(9 citation statements)

References 65 publications

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“…2b). This result was reported in the previous study [20,21]. According to the SPM imager surface roughness of 3D and 2D-micrographs AFM images we note that the change in the surface properties of the composite nanofibers such as average surface roughness (Ra), root mean square surface roughness (Rq), peak-to-valley roughness of the scanned region (Rpv), and surface area ratio (Sdr) compared to the surfaces of the pure nanofibers .…”

Section: Morphological and Surface Propertiessupporting

confidence: 88%

Studying the Physical Properties of Non-Woven Polyacrylonitrile Nanofibers after Adding γ-Fe2O3 Nanoparticles .

Nadhim

Habeeb

2021

Egypt. J. Chem.

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This research focuses on preparing and studying the behavior of non-woven polyacrylonitrile (PAN) nanofibers after adding γ-Fe2O3 nanoparticles to (PAN / N, N dimethylformamide (DMF)) solution with (1.45, 4.3, and 7.14) wt. %. In order to achieve the morphology properties, textural directionality, the bonding between iron oxide particles and the PAN matrix, thermal, crystalline, and magnetic properties we did the Field-Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Near-Infrared Spectroscopy (FT-NIR), Differential Calorimeter Scanning (DSC), X-Ray Diffraction (XRD), and Vibration Sample Magnetometer (VSM). Laboratory analyses demonstrated the significant influence of iron oxide nanoparticles on the characteristics and performance of the composite nanofibers in terms of reduced nanofiber diameter from 109.38±29.70 to 78.17±36.898 nm, the disappearance of beads. In addition to an increase in the crystallinity from 82.43 to 94.28 % accompanied by a larger crystalline size as a result of the polymeric fibers acquiring high magnetic properties after strengthening them with iron oxide nanoparticles, the saturation magnetization (Ms) increases with the increase of iron oxide loading in the nanofibers from (1.426 emu/g) at 1.45 wt.% γ-Fe2O3 to (6.85 emu/g) to 7.14 wt.% γ-Fe2O3 .

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Section: Morphological and Surface Propertiessupporting

confidence: 88%

Studying the Physical Properties of Non-Woven Polyacrylonitrile Nanofibers after Adding γ-Fe2O3 Nanoparticles .

Nadhim

Habeeb

2021

Egypt. J. Chem.

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“…Among the broad range of nanoparticular materials, magnetic nanoparticles can be applied to diverse purposes, either practically for electromagnetic shielding, hyperthermia therapy or as catalysts [ 25 , 26 , 27 ], or as a model system for basic research on magnetic properties of nanofibers and nanofiber composites [ 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Electrospinning Nanofiber Mats with Magnetite Nanoparticles Using Various Needle-Based Techniques

et al. 2022

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Electrospinning can be used to produce nanofiber mats containing diverse nanoparticles for various purposes. Magnetic nanoparticles, such as magnetite (Fe3O4), can be introduced to produce magnetic nanofiber mats, e.g., for hyperthermia applications, but also for basic research of diluted magnetic systems. As the number of nanoparticles increases, however, the morphology and the mechanical properties of the nanofiber mats decrease, so that freestanding composite nanofiber mats with a high content of nanoparticles are hard to produce. Here we report on poly (acrylonitrile) (PAN) composite nanofiber mats, electrospun by a needle-based system, containing 50 wt% magnetite nanoparticles overall or in the shell of core–shell fibers, collected on a flat or a rotating collector. While the first nanofiber mats show an irregular morphology, the latter are quite regular and contain straight fibers without many beads or agglomerations. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) reveal agglomerations around the pure composite nanofibers and even, round core–shell fibers, the latter showing slightly increased fiber diameters. Energy dispersive X-ray spectroscopy (EDS) shows a regular distribution of the embedded magnetic nanoparticles. Dynamic mechanical analysis (DMA) reveals that mechanical properties are reduced as compared to nanofiber mats with smaller amounts of magnetic nanoparticles, but mats with 50 wt% magnetite are still freestanding.

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“…The aggregation behavior of dye molecules is common in aqueous solutions because of molecular interaction [1][2][3][4]. The aggregation has crucial influences on properties of solutions, especially highly concentrated solutions, which are usually used as raw materials for the industrial production processes such as fiber dyeing and printing and photoelectric thin film preparation [5][6][7][8][9][10][11][12][13][14][15]. Meanwhile, the surface tension and viscosity of the solutions are also important factors determining the properties of dye solutions [16], which would be affected by the dye molecular aggregation structure [17].…”

Section: Introductionmentioning

confidence: 99%

Systematically Exploring Molecular Aggregation and Its Impact on Surface Tension and Viscosity in High Concentration Solutions

et al. 2020

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The aggregation structure of dye molecules has a great influence on the properties of dye solutions, especially in high concentration. Here, the dye molecular aggregation structures were investigated systemically in aqueous solutions with high concentration using three reactive dyes (O-13, R-24:1 and R-218). O-13 showed stronger aggregation than R-24:1 and R-218. This is because of the small non-conjugate side chain and its β-linked position on the naphthalene of O-13. Compared with R-218, R-24:1 showed relatively weaker aggregation due to the good solution of R-24:1. The change of different aggregate distributions in the solutions were also investigated by splitting the absorption curves. Moreover, it is found that the surface tension of solutions can be modified by the combined effect of both aggregation and the position of the hydrophilic group, which, however, also have an effect on viscosity. This exploration will provide guidance for the study of high concentration solutions.

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Magnetic-Electrospinning Synthesis of γ-Fe2O3 Nanoparticle–Embedded Flexible Nanofibrous Films for Electromagnetic Shielding

Cited by 19 publications

References 65 publications

Studying the Physical Properties of Non-Woven Polyacrylonitrile Nanofibers after Adding γ-Fe2O3 Nanoparticles .

Studying the Physical Properties of Non-Woven Polyacrylonitrile Nanofibers after Adding γ-Fe2O3 Nanoparticles .

Electrospinning Nanofiber Mats with Magnetite Nanoparticles Using Various Needle-Based Techniques

Systematically Exploring Molecular Aggregation and Its Impact on Surface Tension and Viscosity in High Concentration Solutions

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