Preparation of Anti-Fouling Polyethersulfone Ultrafiltration Membrane by an External High Voltage Electric Enhancing Method

Wang, Yanping; Zhang, Xin; Shi, Baoli; Jia, Lina; Xiao-guang, Zhou

doi:10.1080/01496395.2010.488259

Cited by 4 publications

(3 citation statements)

References 10 publications

(5 reference statements)

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“…For example, an increase in the applied electric field or a flow rate beyond the critical value will lead to the formation of beads or beaded nanofibers. 37 The distance between the metallic needle and the collector differs with polymer solution, 38 and the distance influences the morphology because it is controlled by deposition time, rate of evaporation, and whipping or instability interval. 39 The spinning depends on the uniaxial stretching of the charged jet, which depends on the concentration of the polymer solution.…”

Section: Concise Background Of Electrospun Nanofiber Membrane Fabrica...mentioning

confidence: 99%

Efficacy of Electrospun Nanofiber Membranes on Fouling Mitigation: A Review

Nayak

Shivanna²,

Shwetharani

et al. 2022

ACS Omega

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Despite the advantages of high contaminant removal, operational flexibility, and technical advancements offered, the undesirable fouling property of membranes limits their durability, thus posing restrictions on their usage. An enormous struggle is underway to conquer this major challenge. Most of the earlier reviews include the basic concepts of fouling and antifouling, with respect to particular separation processes such as ultrafiltration, nanofiltration, reverse osmosis and membrane bioreactors, graphene-based membranes, zwitterionic membranes, and so on. As per our knowledge, the importance of nanofiber membranes in challenging the fouling process has not been included in any record to date. Nanofibers with the ability to be embedded in any medium with a high surface to volume ratio play a key role in mitigating the fouling of membranes, and it is important for these studies to be critically analyzed and reported. Our Review hence intends to focus on nanofiber membranes developed with enhanced antifouling and biofouling properties with a brief introduction on fabrication processes and surface and chemical modifications. A summary on surface modifications of preformed nanofibers is given along with different nanofiller combinations used and blend fabrication with efficacy in wastewater treatment and antifouling abilities. In addition, future prospects and advancements are discussed.

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Section: Concise Background Of Electrospun Nanofiber Membrane Fabrica...mentioning

confidence: 99%

Efficacy of Electrospun Nanofiber Membranes on Fouling Mitigation: A Review

Nayak

Shivanna²,

Shwetharani

et al. 2022

ACS Omega

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“…The membrane potentials of the PAEK-COOH membranes were measured in potassium chloride (KCl) solutions through a method as described in literatures. 9,20,21 The membranes (area of 10.4 cm 2 ) were clamped between two self-made polyamide half-cells with volume of 95 cm 3 using silicone rubber rings. KCl solutions with the concentrations of 1 Â 10 À3 mol/L, 2 Â 10 À3 mol/L, 3 Â 10 À3 mol/ L, 4 Â 10 À3 mol/L, 5 Â 10 À3 mol/L, 6 Â 10 À3 mol/L, and 7 Â 10 À3 mol/L were used.…”

Section: Membrane Potential Measurementsmentioning

confidence: 99%

Synthesis and characterization of poly(arylene ether ketone) copolymers with pendant carboxylic acid groups for antifouling ultrafiltration membrane

Ren

Liu

Wang

et al. 2013

High Performance Polymers

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This work focused on the synthesis of a series of poly(arylene ether ketone) random copolymers with various controlled pendant carboxylic acid groups (PEAK-COOH) by direct copolymerization method and the preparation of antifouling ultrafiltration membranes via the conventional immersion precipitation phase inversion method. The morphologies of the PEAK-COOH membranes were investigated by scanning electron microscopy. In addition, the surface hydrophilicity and charged property of the PEAK-COOH membranes were studied by water contact angle and membrane potential measurements, and the results indicated that the introduction of COOH on the polymer chains of membrane materials was really an effective way to negatively charge the membrane and enhance the hydrophilicity. The pure water flux and protein solution permeation through the prepared membranes were increased with the increase in the content of carboxylic acid groups. The cycle ultrafiltration experiments for protein solution revealed that nonspecific protein adsorption, especially irreversible protein adsorption, for the PEAK-COOH membranes, was significantly reduced, suggesting superior antifouling performance.

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“…In one of our previous study, an externally applied electric enhancing technique was used to modify polyethersulfone (PES) UF membrane [12]. For this method, an electric field was applied to the nascent PES membranes before the immersion precipitation phase inversion stage.…”

Section: Introductionmentioning

confidence: 99%

Preparation of PVDF UF Membranes under an External Electric Field with PVP as Additive

Shi

2014

J. Memb. Separ. Tech.

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In this study, PVDF UF membranes were prepared with PVP as additive via a favorable method of applying high voltage external electric field (2kV) through the immersion precipitation phase inversion process. The influence of external electric field on the structure, surface functional groups, membrane potential, and surface hydrophilicity of the membranes were researched. In addition, anti-fouling property and separation performance of the membranes were also investigated. The results indicated that the protein adsorption amount on the electric treated membranes was distinctly reduced. Especially for the electric treated PVDF membrane with PVP K70 as additive, the value of water contact angle reached 75.4° and the protein adsorption amount decreased 76 %, reaching 20.39 g cm-2. The separation performance of the electric treated membrane was also superior to that of the untreated membrane. All the experimental results indicated that this electric treated approach open a promising way for the modification of PVDF membrane because it combined membrane preparation and modification in only one physical step without additional chemical reagents.

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Preparation of Anti-Fouling Polyethersulfone Ultrafiltration Membrane by an External High Voltage Electric Enhancing Method

Cited by 4 publications

References 10 publications

Efficacy of Electrospun Nanofiber Membranes on Fouling Mitigation: A Review

Efficacy of Electrospun Nanofiber Membranes on Fouling Mitigation: A Review

Synthesis and characterization of poly(arylene ether ketone) copolymers with pendant carboxylic acid groups for antifouling ultrafiltration membrane

Preparation of PVDF UF Membranes under an External Electric Field with PVP as Additive

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