Surface-Modified Nanofibrous PVDF Membranes for Liquid Separation Technology

Boyraz, Evren; Yalçinkaya, Fatma; Hrůza, Jakub; Maryška, Jiří

doi:10.3390/ma12172702

Cited by 25 publications

(21 citation statements)

References 27 publications

(35 reference statements)

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“…Electrospinning makes it possible to create nanofiber mats from diverse materials, such as pure polymers [1][2][3], polymers blends, composite fibers from polymers and ceramics or metals [4,5], and cyclodextrins [6]. These can be used in diverse applications such as filters [7][8][9], biotechnology and tissue engineering [10][11][12], for energy harvesting and storage [13,14], or other "smart" functions [15]. Recently, a strong focus of diverse research groups has been related to electrospinning magnetic nanofibers, either as composites [16][17][18] or, after calcination of the composites to remove polymers, as pure metal nanofibers [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

et al. 2020

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Magnetic nanofibers are of great interest in basic research, as well as for possible applications in spintronics and neuromorphic computing. Here we report on the preparation of magnetic nanofiber mats by electrospinning polyacrylonitrile (PAN)/nanoparticle solutions, creating a network of arbitrarily oriented nanofibers with a high aspect ratio. Since PAN is a typical precursor for carbon, the magnetic nanofiber mats were stabilized and carbonized after electrospinning. The magnetic properties of nanofiber mats containing magnetite or nickel ferrite nanoparticles were found to depend on the nanoparticle diameters and the potential after-treatment, as compared with raw nanofiber mats. Micromagnetic simulations underlined the different properties of both magnetic materials. Atomic force microscopy and scanning electron microscopy images revealed nearly unchanged morphologies after stabilization without mechanical fixation, which is in strong contrast to pure PAN nanofiber mats. While carbonization at 500 °C left the morphology unaltered, as compared with the stabilized samples, stronger connections between adjacent fibers were formed during carbonization at 800 °C, which may be supportive of magnetic data transmission.

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Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

et al. 2020

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“…A similar attempt has been made using PVDF nanofiber web. Differently, the plasma treatment has been eliminated [64]. PVDF membranes were defluorinated in alkaline solution, and then TiO 2 nanoparticles were attached on the surface, as illustrated in Figure 3.…”

Section: Membrane Fouling and Surface Modificationmentioning

confidence: 99%

“…Moreover, some of the membranes improve self-cleaning properties. Literature research shows that, for effective and high-performance oil separation, surface modification of membrane is needed [58][59][60][61][62][63][64][65][66]. Surface modified membranes not only offer superior flux but also antifouling performance.…”

Section: Membrane Fouling and Surface Modificationmentioning

confidence: 99%

A Review on Membrane Technology and Chemical Surface Modification for the Oily Wastewater Treatment

et al. 2020

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Cleaning of wastewater for the environment is an emerging issue for the living organism. The separation of oily wastewater, especially emulsified mixtures, is quite challenged due to a large amount of wastewater produced in daily life. In this review, the membrane technology for oily wastewater treatment is presented. In the first part, the global membrane market, the oil spill accidents and their results are discussed. In the second and third parts, the source of oily wastewater and conventional treatment methods are represented. Among all methods, membrane technology is considered the most efficient method in terms of high separation performance and easy to operation process. In the fourth part, we provide an overview of membrane technology, fouling problem, and how to improve the self-cleaning surface using functional groups for effectively treating oily wastewater. The recent development of surface-modified membranes for oily wastewater separation is investigated. It is believed that this review will promote understanding of membrane technology and the development of surface modification strategies for anti-fouling membranes.

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“…Among all the electrospinning post-processes, one of the most widely studied when working with NPs is the surface treatment of electrospun mats. In particular, surface treatment consists in the immersion of electrospun mats into a NPs solution [55]. Thus, the surface of electrospun fibers is covered by NPs thanks to electrostatic forces, hydrogen bonding or interactions among functional groups.…”

Section: Collectormentioning

confidence: 99%

Potential Applications of Magnesium-Based Polymeric Nanocomposites Obtained by Electrospinning Technique

et al. 2020

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In the last few decades, the development of new electrospun materials with different morphologies and advanced multifunctional properties are strongly consolidated. There are several reviews that describe the processing, use and characterization of electrospun nanocomposites, however, based on our knowledge, no review on electrospun nanocomposites reinforced with nanoparticles (NPs) based on magnesium, Mg-based NPs, are reported. Therefore, in the present review, we focus attention on the fabrication of these promising electrospun materials and their potential applications. Firstly, the electrospinning technique and its main processing window-parameters are described, as well as some post-processing methods used to obtain Mg-based materials. Then, the applications of Mg-based electrospun nanocomposites in different fields are pointed out, thus taking into account the current trend in developing inorganic-organic nanocomposites to gradually satisfy the challenges that the industry generates. Mg-based electrospun nanocomposites are becoming an attractive field of research for environmental remediation (waste-water cleaning and air filtration) as well as for novel technical textiles. However, the mayor application of Mg-based electrospun materials is in the biomedical field, as pointed out. Therefore, this review aims to clarify the tendency in using electrospinning technique and Mg-based nanoparticles to huge development at industrial level in the near future.

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Surface-Modified Nanofibrous PVDF Membranes for Liquid Separation Technology

Cited by 25 publications

References 27 publications

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

A Review on Membrane Technology and Chemical Surface Modification for the Oily Wastewater Treatment

Potential Applications of Magnesium-Based Polymeric Nanocomposites Obtained by Electrospinning Technique

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