Antifouling Hydrophilic Electrostatic Spinning PAN Membrane Based on Click Chemistry with High Efficiency Oil-water Separation

Shen, Baosheng; Du, Chunxiao; Wang, Wei; Yu, Daren

doi:10.1007/s12221-022-4095-2

Cited by 9 publications

(5 citation statements)

References 39 publications

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“…constructed two kinds of hydrophilic and underwater oleophobic membranes, namely DMDAAC‐PAN (DPAN) and SPE‐PAN, by the electrostatic spinning of PAN with γ‐mercaptopropyltriethoxysilane to generate the MPAN membrane, and grafting dimethyldiallylammonium chloride monomers (DMDAAC)/3‐[ N , N ‐dimethyl‐[2‐(2‐methylprop‐2‐enoyloxy)ethyl]ammonium]propane‐1‐sulfonate inner salt (SPE) through thiol‐ene click chemistry. [ 71 ] For surfactant‐free emulsions and surfactant‐stabilized emulsions, the DPAN membrane exhibited higher permeate flux and superior separation efficiency compared to PAN and MPAN membranes, attributed to the formation of a hydration layer preventing oil droplets from blocking membrane surface. The SPE‐PAN membrane exhibited high pure water flux up to 787 L·m −2 ·h −1 , and good antifouling effect with a flux recovery rate of 94%.…”

Section: Advances In Liquid Separation Membranes Based On Thiol‐ene C...mentioning

confidence: 99%

Thiol‐Ene Click Reaction in Constructing Liquid Separation Membranes for Water Treatment

Yu,

Lu,

Xiong

et al. 2024

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In the evolving landscape of water treatment, membrane technology has ascended to an instrumental role, underscored by its unmatched efficacy and ubiquity. Diverse synthesis and modification techniques are employed to fabricate state‐of‐the‐art liquid separation membranes. Click reactions, distinguished by their rapid kinetics, minimal byproduct generation, and simple reaction condition, emerge as a potent paradigm for devising eco‐functional materials. While the metal‐free thiol‐ene click reaction is acknowledged as a viable approach for membrane material innovation, a systematic elucidation of its applicability in liquid separation membrane development remains conspicuously absent. This review elucidates the pre‐functionalization strategies of substrate materials tailored for thiol‐ene reactions, notably highlighting thiolation and introducing unsaturated moieties. The consequential implications of thiol‐ene reactions on membrane properties—including trade‐off effect, surface wettability, and antifouling property—are discussed. The application of thiol‐ene reaction in fabricating various liquid separation membranes for different water treatment processes, including wastewater treatment, oil/water separation, and ion separation, are reviewed. Finally, the prospects of thiol‐ene reaction in designing novel liquid separation membrane, including pre‐functionalization, products prediction, and solute‐solute separation membrane, are proposed. This review endeavors to furnish invaluable insights, paving the way for expanding the horizons of thiol‐ene reaction application in liquid separation membrane fabrication.

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Section: Advances In Liquid Separation Membranes Based On Thiol‐ene C...mentioning

confidence: 99%

Thiol‐Ene Click Reaction in Constructing Liquid Separation Membranes for Water Treatment

Yu,

Lu,

Xiong

et al. 2024

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“…Drawing inspiration from the lotus leaf, superhydrophobicity is typically attained through materials with low surface energy or by engineering the surface morphology of materials . The electrostatically spun nanofiber membrane represents a promising avenue for efficient oil–water separation, attributable to its elevated porosity, extensive specific surface area, and robust spatial connectivity. − Currently, a diverse array of polymers, including poly(acrylonitrile), polyimide, poly(phenylene sulfide), poly(vinylidene fluoride), polyurethane, and polypropylene, have been investigated for the preparation of nanofiber membranes via electrostatic spinning, aimed at oil–water separation. Nevertheless, due to the nondegradable nature of these materials, the disposal of fiber membranes after oil–water separation introduces other environmental pollution challenges.…”

Section: Introductionmentioning

confidence: 99%

Polymer PU–PTHF–PU Significantly Enhances the Mechanical Properties of Poly(lactic acid) Matrix Oil–Water Separation Fiber Membranes

Chen,

Zhang,

Song

et al. 2024

ACS Appl. Polym. Mater.

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As the global economy continues to expand, the issue of oily wastewater pollution has garnered significant attention. Consequently, this paper reports a poly(lactic acid)-based coblended fiber membrane for oil− water separation. The synthesis of a polyurethane−poly(tetrahydrofuran)− polyurethane (PU−PTHF−PU) polymer at 25 °C and its incorporation at 20 wt % into fibrous membranes resulted in a water contact angle of 138°. The coblended fibrous membranes exhibited a tensile strength of 8.05 MPa and an elongation at break of 46.53%, simultaneously improving the rigidity and toughness of the fiber membrane, endowing the poly(L-lactic acid) (PLLA) fibrous membranes with good hydrophobicity and mechanical properties. Featuring a maximum permeate flux of 3898 L•m −2 •h −1 , an oil recovery efficiency of 99.4%, and outstanding stability and durability, the PU−PTHF− PU/PCL/PLLA [PCL = poly(ε-caprolactone)] fibrous membrane represents an ideal solution as an all-biobased biodegradable membrane for oil−water separation.

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“…Recently, electrospun fibrous membranes prepared by electrospinning have become an ideal choice for oilin-water separation because of their structural features such as smaller fiber diameter, high porosity (>80%), 12 and good pore connectivity. Currently, a series of electrospun fibrous membranes were fabricated by polymers such as poly (vinylidene difluoride) (PVDF) 13,14 and polyacrylonitrile (PAN) 15,16 etc for oil-in-water separation, which showed robust permeation fluxes. Despite their outstanding potential, the majority of these electrospun fibrous films are still subjected to low separation efficiency for oil-in-water emulsions with submicrometer oil droplets as a result of their relatively large pore size (>1 μm) attributed to pseudo-nanoscale diameters (>100 nm).…”

Section: Introductionmentioning

confidence: 99%

Nanonet membranes with nano‐mastoid structure for high‐performance oily wastewater treatment

Chen,

Tang,

Zhu

et al. 2023

Journal of Polymer Science

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The pollution caused by oily wastewater has a severe influence on the human health and ecological environment. However, the present membranes suffer from a bottleneck that it is difficult to synchronously improve the filtration efficiency and permeation flux. It is still of great importance to develop efficient oil‐in‐water separation membranes. Herein, we have prepared a nanonet membrane (NM) with both nanonet structure and nano‐mastoid structure through a combination of phase inversion with electrospinning. Profiting from the structural advantages of network interconnectivity, sub‐micrometer pores, and high porosity, the NMs demonstrated outstanding capacity for separating nanoscale oil‐in‐water emulsions with a prospective separation efficiency (99.2%) and robust permeation flux (24,076 L m−2 h−1). Importantly, benefitting from their good surface wettability and low underwater oil adhesion, the NMs maintained a stable permeation flux (7738 L m−2 h−1) and stable high separation efficiency (99.1%) even after 10 separation cycles. The synthesis of such nanonet membranes may develop new paths for the development of next‐generation separation membranes with high performance.

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Antifouling Hydrophilic Electrostatic Spinning PAN Membrane Based on Click Chemistry with High Efficiency Oil-water Separation

Cited by 9 publications

References 39 publications

Thiol‐Ene Click Reaction in Constructing Liquid Separation Membranes for Water Treatment

Thiol‐Ene Click Reaction in Constructing Liquid Separation Membranes for Water Treatment

Polymer PU–PTHF–PU Significantly Enhances the Mechanical Properties of Poly(lactic acid) Matrix Oil–Water Separation Fiber Membranes

Nanonet membranes with nano‐mastoid structure for high‐performance oily wastewater treatment

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