Processing and characterizations of rotary linear needleless electrospun polyvinyl alcohol(PVA)/Chitosan(CS)/Graphene(Gr) nanofibrous membranes

Li, Ting‐Ting; Yan, Mengxue; Zhong, Yanqin; Ren, Haitao; Lou, Ching‐Wen; Huang, Shih‐Yu; Lin, Jia‐Horng

doi:10.1016/j.jmrt.2019.08.035

Cited by 50 publications

(28 citation statements)

References 38 publications

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“…The cross-sectional profiles of these three CS:GO nanocomposite films with a distinct weight ratio of 2:1, 5:1, and 10:1 ( w / w ), respectively, present a layered structure of GO ( Figure 1 b–d) with a thickness of roughly 30 nm. The reason for better compatibility between CS and GO is that amino and carboxyl groups in CS can be used to form hydrogen bonding with a variety of oxygen-containing groups in GO and simultaneously inhibit the aggregation of GO [ 23 , 24 , 25 , 26 ]. The morphological observation ( Figure 2 ) without agglomeration illustrates that more content of GO brings about more wrinkled nanocomposite film.…”

Section: Resultsmentioning

confidence: 99%

“…The morphological observation ( Figure 2) without agglomeration illustrates that more content of GO brings about more wrinkled nanocomposite film. The strong p-p stacking within GO is responsible for it [25,26]. It indicates that GO is well dispersed in CS, which is beneficial for the use of wrinkled surfaces for this application.…”

Section: Characterization Of Cs:go Nanocompositesmentioning

confidence: 99%

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Multi-Bit Biomemory Based on Chitosan: Graphene Oxide Nanocomposite with Wrinkled Surface

2020

Micromachines

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Chitosan (CS) is one of the commonly affluent polysaccharides that are attractive biomaterials as they are easily found in different organisms and are biocompatible. An environment-friendly multi-bit biomemory was successfully achieved on the basis of CS as a favorable candidate for resistive-switching memory applications. By incorporating graphene oxide (GO) into CS, the multi-bit biomemory device (indium tin oxide (ITO)/CS:GO/Ni) was obtained through the solution-processable method, which had a high current ratio among a high, intermediate, and low resistance state as well as a low SET/RESET voltage. GO acting as trapping sites in the active layer might be responsible for the biomemory mechanism. This research opens up a new avenue towards renewable and environmentally benign CS-based materials for biodegradable electronic devices.

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Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Cs:go Nanocompositesmentioning

confidence: 99%

Multi-Bit Biomemory Based on Chitosan: Graphene Oxide Nanocomposite with Wrinkled Surface

2020

Micromachines

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“…However due to the poor mechanical and thermal properties CA alone is not suitable for NF performance 35 , 39 , 40 . To overcome this CA is incorporated with different materials like carbon nanotubes (CNTs), fume silica, ZnO nanorods, sepiolite, zeolite and graphene oxide (GO) 41 , 42 . Due to high mechanical as well as chemical properties and cost effectiveness the carbon-based graphene and GO used for membrane modification 43 .…”

Section: Introductionmentioning

confidence: 99%

Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water

Idress

Zaidi

Sabir

et al. 2021

Sci Rep

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This study investigates the removal of Pb(II) using polymer matrix membranes, cellulose acetate/vinyl triethoxysilane modified graphene oxide and gum Arabic (GuA) membranes. These complexation-NF membranes were successfully synthesized via dissolution casting method for better transport phenomenon. The varied concentrations of GuA were induced in the polymer matrix membrane. The prepared membranes M-GuA2–M-GuA10 were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, atomic force microscope and bio-fouling studies. Thermal stability of the membranes was determined by thermogravimetric analysis under nitrogen atmosphere. Dead end nanofiltration was carried out to study the perm- selectivity of all the membranes under varied pressure and concentration of Pb(NO3)2. The complexation-NF membrane performances were significantly improved after the addition of GuA in the polymer matrix membrane system. M-GuA8 membrane showed optimum result of permeation flux 8.6 l m−2 h−1. Rejection of Pb(II) ions was observed to be around 97.6% at pH 9 for all the membranes due to electrostatic interaction between CA and Gum Arabic. Moreover, with the passage of time, the rate of adsorption was also increased up to 15.7 mg g−1 until steady state was attained. Gum Arabic modified CA membranes can open up new possibilities in enhancing the permeability, hydrophilicity and anti-fouling properties.

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“…When the electric field is sufficient to overcome the surface tension of electrospinning solution, polymers can be induced, ejected, and expanded to form nanofibers [ 14 ]. Overall, electrospinning technology is a simple approach used to produce continuous non-woven nanofiber membranes with a large specific area, random aliment, high air permeability, and good perviousness [ 15 , 16 , 17 ]. Composites membranes are defined as the merging of inorganic and organic materials to obtain enhanced membranes by joining the strengths of materials [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Polypropylene/Polyvinyl Alcohol/Metal-Organic Framework-Based Melt-Blown Electrospun Composite Membranes for Highly Efficient Filtration of PM2.5

Fan

Cen

et al. 2020

Nanomaterials

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Particulate matter 2.5 (PM2.5) has become a public hazard to people’s lives and health. Traditional melt-blown membranes cannot filter dangerous particles due to their limited diameter, and ultra-fine electrospinning fibers are vulnerable to external forces. Therefore, creating highly efficient air filters by using an innovative technique and structure has become necessary. In this study, a combination of polypropylene (PP) melt-blown and polyvinyl alcohol (PVA)/zeolite imidazole frameworks-8 (ZIF-8) electrospinning technique is employed to construct a PP/PVA/ZIF-8 membrane with a hierarchical fibrous structure. The synergistic effect of hierarchical fibrous structure and ZIF-8 effectively captures PM2.5. The PP/PVA composite membrane loaded with 2.5% loading ZIF-8 has an average filtration efficacy reaching as high as 96.5% for PM2.5 and quality factor (Qf) of 0.099 Pa−1. The resultant membrane resists 33.34 N tensile strength and has a low pressure drop, excellent filtration efficiency, and mechanical strength. This work presents a facile preparation method that is suitable for mass production and the application of membranes to be used as air filters for highly efficient filtration of PM2.5.

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Processing and characterizations of rotary linear needleless electrospun polyvinyl alcohol(PVA)/Chitosan(CS)/Graphene(Gr) nanofibrous membranes

Cited by 50 publications

References 38 publications

Multi-Bit Biomemory Based on Chitosan: Graphene Oxide Nanocomposite with Wrinkled Surface

Multi-Bit Biomemory Based on Chitosan: Graphene Oxide Nanocomposite with Wrinkled Surface

Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water

Polypropylene/Polyvinyl Alcohol/Metal-Organic Framework-Based Melt-Blown Electrospun Composite Membranes for Highly Efficient Filtration of PM2.5

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