Robust preparation of flexibly super-hydrophobic carbon fiber membrane by electrospinning for efficient oil-water separation in harsh environments

Sun, Xichao; Bai, Linzhan; Li, Jiao; Huang, Lilan; Sun, Haibin; Gao, Xueli

doi:10.1016/j.carbon.2021.05.047

Cited by 100 publications

(23 citation statements)

References 50 publications

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“…These membranes could undergo a significant deformation rather than sudden fracture during stretching. Their mechanical properties are similar with or even better than some other electrospun membranes reported. , Such mechanical performance is conducive to their further application into the wound dressing field.…”

Section: Resultssupporting

confidence: 64%

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Supramolecular Assembly of β-Cyclodextrin-Modified Polymer by Electrospinning with Sustained Antibacterial Activity

Chen

Zhang

et al. 2021

Biomacromolecules

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Supramolecular assembly loading drug as biomedical materials is a research hotspot. Herein, we reported a supramolecular electrospun assembly constructed via the hydrophobic and hydrogen bonding interaction. The obtained results showed that the assembly by supramolecular electrospinning not only increased the interactions of multiple antibacterial active species including antibiotics, cationic polymers, and silver to form a flexible membrane with good mechanical strength but also indicated the dual effects of rapid doxycycline and polyethyleneimine release as well as a sustained Ag release. Interestingly, the assembly showed not only good degradability but also a high bacteriostatic efficacy toward Escherichia coli (E. coli) up to 99.9%. More importantly, the in vivo wound healing assay indicated that the assembly could promote the healing of uninfected, E. coli-infected, and even methicillin-resistant staphylococcus aureus-infected wounds. The current research provides a novel approach to construct a supramolecular assembly by electrospinning mechanically induced strong noncovalent interaction.

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Section: Resultssupporting

confidence: 64%

“…Their mechanical properties are similar with or even better than some other electrospun membranes reported. 39,40 Such mechanical performance is conducive to their further application into the wound dressing field.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Supramolecular Assembly of β-Cyclodextrin-Modified Polymer by Electrospinning with Sustained Antibacterial Activity

Chen

Zhang

et al. 2021

Biomacromolecules

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“…The crosslinking mechanism of PFDTS with TiO 2 precursor in hydrothermal growth solution is shown in Figure 1b. The -OH generated by the hydrolysis of PFDTS provides a "bridge" for grafting with TiO 2 precursor, forming a covalent bond via a Ti-O-Si bond, [15,22] which brings about the robust adhesion and tight bonding of PFDTS layers on TiO 2 NPs. The XPS spectrum of PVDF/PTFE@TiO 2 membrane reveals the formation of Ti-O-Si (531.4 eV) bonds in addition to the Si-O-Si (533.0 eV) and Ti-O-Ti (530.9 eV) bonds (Figure 2d).…”

Section: Characterization Of Membranesmentioning

confidence: 99%

Dehydrofluorination and One‐Pot Hydrothermal Process for Polyvinylidene fluoride/Polytetrafluoroethylene@TiO₂ Membranes with Durable Superhydrophobicity toward Repeatable Separating and Photodegrading Oily Dyes in Water‐in‐Oil Emulsions

Deng

Tan

Tian

et al. 2022

Macro Materials & Eng

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The photocatalytic and inherently hydrophilic characteristic of titanium dioxide (TiO2) make it very suitable for separating oil‐in‐water emulsion and aqueous pollutants removal. However, the removal of the oily dyes in water‐in‐oil emulsion usually needs superhydrophobic/superoleophilic membranes. Although surface modification of TiO2 with fluorinated organic compounds can bring hydrophobicity, the hydrophobic surface would change back to a hydrophilic surface again after light illumination as fluorinated organic molecules are easily photodegraded too. To date, very few reports have successfully fabricated TiO2 photocatalysts keeping long‐term superhydrophobicity after repeatable photodegradation. Herein, an approach to fabricate polyvinylidene fluoride (PVDF)/polytetrafluoroethylene (PTFE) @TiO2 nanofibrous membranes through dehydrofluorination and one‐pot hydrothermal process, which possess stable superhydrophobicity in various harsh environments, is reported. For the first time, PTFE is bonded with PVDF through dehydrofluorination which induces crosslinking between PTFE and PVDF chains. Owing to the existence of PTFE, extensive hydrophobic TiO2 can be in situ grown on the rough surface of PVDF/PTFE nanofibers through one‐pot hydrothermal process. These features ensure that the membranes possess durable and high‐efficient water‐in‐oil emulsion separation and photodegradation performance. The photodegradation efficiency of the PVDF/PTFE@TiO2 membranes for oil‐soluble dyes remains above 95% even after ten cycles.

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“…The current preparing methods of nanofiber membranes are stretching method, 16 self‐assembly method, 17 phase transformation method, 18 and electrospinning method 8 . Recently, researchers focused on manufacturing & developing the bio‐based poly (lactic acid) (PLA) electrospinning fiber membranes, since it had biodegraded ability, high specific surface area, high pore connectivity, and selective wetting 19,20 . However, the PLA electrospinning fiber membranes still have two main deficiencies, that is, low oil–water separation efficiency and easy to contaminated.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrospinning of multiscale‐ordered PLA/LDH@AgGB composite nanofibrous membrane for antibacterial and oil–water separation

Cheng¹,

Liu

Zhang

et al. 2022

J of Applied Polymer Sci

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In recent years, the problem of oily sewage has seriously affected the ecological environment and human health. Thus, we prepared a novel biodegradable poly (lactic acid) (PLA) membrane with antibacterial property and oil–water separation function via electrospinning method. First, the matter of silver ion glass microbeads (AgGB) loaded with layered double hydroxides (LDHs) and the LDH@AgGB modified with 3‐triethoxysilyl‐1‐Propanamine (APTES) were synthesized. Then, the LDH@AgGB were blended with PLA to prepare PLA/LDH@AgGB composite. And the PLA nanofibrous membranes were electrospun. The results showed that APTES could significantly improve the dispersion and compatibility of LDH@AgGB in PLA matrix. The addition of A‐LDH@AgGB could greatly improve the crystallinity, and control the porosity and pore‐size of PLA membranes. The maximum water contact angle of the PLA membranes could reach to 109.31°, while the oil contact angle of the PLA membranes decreased to 0° resulting in a high oil absorption capacity, and fast oil absorption rate performance. Meanwhile, the PLA membrane had efficient antibacterial property against Escherichia coli. The reported novel LDH@AgGB and its PLA composite membrane provided a method for designing and preparing environmental‐friendly, high‐performance materials with both excellent antibacterial property and oil–water separation.

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Robust preparation of flexibly super-hydrophobic carbon fiber membrane by electrospinning for efficient oil-water separation in harsh environments

Cited by 100 publications

References 50 publications

Supramolecular Assembly of β-Cyclodextrin-Modified Polymer by Electrospinning with Sustained Antibacterial Activity

Supramolecular Assembly of β-Cyclodextrin-Modified Polymer by Electrospinning with Sustained Antibacterial Activity

Dehydrofluorination and One‐Pot Hydrothermal Process for Polyvinylidene fluoride/Polytetrafluoroethylene@TiO₂ Membranes with Durable Superhydrophobicity toward Repeatable Separating and Photodegrading Oily Dyes in Water‐in‐Oil Emulsions

Synthesis and electrospinning of multiscale‐ordered PLA/LDH@AgGB composite nanofibrous membrane for antibacterial and oil–water separation

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Robust preparation of flexibly super-hydrophobic carbon fiber membrane by electrospinning for efficient oil-water separation in harsh environments

Cited by 100 publications

References 50 publications

Supramolecular Assembly of β-Cyclodextrin-Modified Polymer by Electrospinning with Sustained Antibacterial Activity

Supramolecular Assembly of β-Cyclodextrin-Modified Polymer by Electrospinning with Sustained Antibacterial Activity

Dehydrofluorination and One‐Pot Hydrothermal Process for Polyvinylidene fluoride/Polytetrafluoroethylene@TiO2 Membranes with Durable Superhydrophobicity toward Repeatable Separating and Photodegrading Oily Dyes in Water‐in‐Oil Emulsions

Synthesis and electrospinning of multiscale‐ordered PLA/LDH@AgGB composite nanofibrous membrane for antibacterial and oil–water separation

Contact Info

Product

Resources

About

Dehydrofluorination and One‐Pot Hydrothermal Process for Polyvinylidene fluoride/Polytetrafluoroethylene@TiO₂ Membranes with Durable Superhydrophobicity toward Repeatable Separating and Photodegrading Oily Dyes in Water‐in‐Oil Emulsions