Crosslinking assisted fabrication of ultrafine poly(vinyl alcohol)/functionalized graphene electrospun nanofibers for crystal violet adsorption

Chailek, Nirumon; Daranarong, Donraporn; Punyodom, Winita; Molloy, Robert; Worajittiphon, Patnarin

doi:10.1002/app.46318

Cited by 22 publications

(6 citation statements)

References 52 publications

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“…Polyacrylonitrile (PAN) [ 58 ], polysulfone (PSF), polyvinylidene fluoride (PVDF) [ 59 ], polyurethane (PU) [ 60 ], polyvinyl alcohol (PVA) [ 61 ], polyethersulfone (PES) [ 62 ], fluoropolymer, poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP, PH), polystyrene (PS) [ 63 ], and polydimethylsiloxane (PDMS) [ 64 ] are favored for their adjustable fiber diameters, impressive membrane porosities and uniform pore sizes [ 65 ]. It is a universal preference that these polymers be electrospun into ENMs with the pore size range of 0.1–1.0 μm, which significantly affects the removal of particles exceeding 1.0 μm.…”

Section: Enms With a Nanofiber Layer As The Selective Layermentioning

confidence: 99%

Electrospun Nanofiber-Based Membranes for Water Treatment

et al. 2022

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Water purification and water desalination via membrane technology are generally deemed as reliable supplementaries for abundant potable water. Electrospun nanofiber-based membranes (ENMs), benefitting from characteristics such as a higher specific surface area, higher porosity, lower thickness, and possession of attracted broad attention, has allowed it to evolve into a promising candidate rapidly. Here, great attention is placed on the current status of ENMs with two categories according to the roles of electrospun nanofiber layers: (i) nanofiber layer serving as a selective layer, (ii) nanofiber layer serving as supporting substrate. For the nanofiber layer’s role as a selective layer, this work presents the structures and properties of conventional ENMs and mixed matrix ENMs. Fabricating parameters and adjusting approaches such as polymer and cosolvent, inorganic and organic incorporation and surface modification are demonstrated in detail. It is crucial to have a matched selective layer for nanofiber layers acting as a supporting layer. The various selective layers fabricated on the nanofiber layer are put forward in this paper. The fabrication approaches include inorganic deposition, polymer coating, and interfacial polymerization. Lastly, future perspectives and the main challenges in the field concerning the use of ENMs for water treatment are discussed. It is expected that the progress of ENMs will promote the prosperity and utilization of various industries such as water treatment, environmental protection, healthcare, and energy storage.

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Section: Enms With a Nanofiber Layer As The Selective Layermentioning

confidence: 99%

Electrospun Nanofiber-Based Membranes for Water Treatment

et al. 2022

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“…In addition, electrospinning, as a simple and effective new process for the production of continuous long nanofibers, plays an irreplaceable role in the fields of energy, optoelectronics, catalysis, sensing, biomedicine, filtration, and protection . Electrospinning technology has the advantages of simple operation, low cost, and continuous preparation, which has been a research hotspot in the field of nanofibers …”

Section: Introductionmentioning

confidence: 99%

Preparation of PEI nanofiber membrane based on in situ and solution crosslinking technology and their adsorption properties

Song

Wang

et al. 2019

J of Applied Polymer Sci

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Two kinds of PEI (Polyethyleneimine) nanofibers membrane were successfully prepared by electrospinning and crosslinking technology, which were insoluble in water. One Polyethyleneimine/ Epichlorohydrin/ Polyacrylonitrile nanofibrous films (abbreviated as PEI/ EPI/ PAN NFs) was prepared by in situ crosslinking of PEI/PAN nanofiber containing of EPI, and the other PEI/ PAN/ EPI NFs was prepared by crosslinking PEI/ PAN nanofibers using EPI solution. The composition and morphology of nanofibers before and after crosslinking were investigated by infrared spectroscopy and scanning electron microscopy. PEI/EPI/PAN nanofibers exhibited excellent adsorption properties toward heavy metal ions and methyl orange dyes, which can also be reused multiple times. The adsorption rate of methyl orange remained around 75% after 4 cycles, meanwhile, the adsorption rate of copper and lead still remained around 90% after 5 cycles. In addition, we found that PEI/ PAN/ EPI nanofibers prepared by solution crosslinking technology solved the problem of easy gel formation in in situ crosslinking technology and facilitated the continuous production of PEI/ EPI/ PAN nanofibers, which is better than in situ crosslinking technology.

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“…Its main working principle is to use electric field force to overcome the surface tension of the Taylor cone of solution or melt in the high voltage electric field environment, and the spinning liquid that undergoes charge transfer is stretched and refined to form nanofibers. Due to the high surface area, high surface activity and high surface energy, electrospun nanofibers can be used in a wide variety of applications such as nonwoven fabrics [ 1 ], sensorics [ 2 ], photonics [ 3 ], filtration [ 4 ], composites [ 5 ], wound dressing [ 6 ], tissue engineering [ 7 ], fuel cells [ 8 ] and so on. However, due to the low production volume of conventional single-needle electrostatic spinning, the application of nanofibers in commercial production is inhibited, and its yield is usually 0.01–0.1 g/h [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of PLGA/MWCNT Composite Nanofibers by Airflow Bubble-Spinning and Their Characterization

Fang

Liu

et al. 2018

Polymers

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Poly(lactic-co-glycolic acid) (PLGA)/multi-walled carbon nanotube (MWCNT) composite nanofibers have been successfully fabricated via airflow bubble-spinning. In this work, a systematic study of the effects of solution concentration, relative humidity (RH), and composition on the morphology of PLGA nanofibers is reported. By comparing the distribution of fiber diameter, we found that the spinning effect was the best when the temperature was kept at 25 °C, the collecting distance 18 cm, the concentration 8 wt %, and the relative humidity 65%. MWCNTs used as added nanoparticles were incorporated into the PLGA nanofibers. The volatile solvents were used to achieve the purpose of producing nanoporous fibers. Besides, the rheological properties of solutions were studied and the PLGA or PLGA/MWCNT composite nanofibers with a nanoporous structure were also completely characterized using scanning electron microscope (SEM), a thermogravimetric analyzer(TGA), X-ray diffraction(XRD) and Fourier-transform infrared (FTIR) spectroscopy. In addition, we compared the mechanical properties of the fibers. It was found that the addition of MWCNTs significantly enhanced the tensile strength and elasticity of composite nanofibers without compromising the nanoporous morphology. The results showed that the breaking strength of the composite fiber bundle was three times as strong as the pure one, and the elongation at the break was twice as great. This work provided a novel technique successfully not only to get rid of the potential safety hazards caused by unexpected static but also prepare oriented nanoporous fibers, which would demonstrate an impressive prospect for the fields of adsorption and filtration.

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Crosslinking assisted fabrication of ultrafine poly(vinyl alcohol)/functionalized graphene electrospun nanofibers for crystal violet adsorption

Cited by 22 publications

References 52 publications

Electrospun Nanofiber-Based Membranes for Water Treatment

Electrospun Nanofiber-Based Membranes for Water Treatment

Preparation of PEI nanofiber membrane based on in situ and solution crosslinking technology and their adsorption properties

Preparation of PLGA/MWCNT Composite Nanofibers by Airflow Bubble-Spinning and Their Characterization

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