Initial testing of electrospun nanofibre filters in water filtration applications

Bjorge, D.; Daels, Nele; Vrieze, Sander De; Dejans, Pascal; Camp, Tamara Van; Audenaert, Wim; Westbroek, Philippe; Clerck, Karen De; Boeckaert, C.; Hulle, Stijn Van

doi:10.4314/wsa.v36i1.50924

Cited by 14 publications

(7 citation statements)

References 15 publications

(12 reference statements)

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“…Nanofiber membranes share similar pore sizes with MF membranes in the range of 0.1-10 lm, making them applicable for MBR process which uses MF membranes. Bjorge et al were the first group to investigate the performance of nanofibrous membranes in MBR application (Bjorge et al 2009(Bjorge et al , 2010. They utilized polyamide (PA) nanofibers for their MBR process.…”

Section: Nanofibers For Wastewater Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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Materials of nanofibrous morphology and structure are attractive for solving environmental problems including water-related issues. In recent years, increasing interest is geared on the use of specially designed electrospun nanofibers for water/wastewater treatment applications. The nanofibers can be used in the form of nonwoven structures, as stand-alone membranes, as support layer or as a surface modification layer that enables added functionality to a composite material. Continuous research has been carried out in optimizing the nanofiber membrane design and structure by manipulating material, process and surrounding parameters in the electrospinning process. This chapter highlights the recent advances and developments on the potential and application of electrospun nanofibers for water/ wastewater treatment. Comprehensive discussion is presented here on various designs and structures of nanofibers and their applications to water-related treatment and the future prospects of such materials.

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Section: Nanofibers For Wastewater Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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“…Electrospinning is a popular fabrication method of filtration membranes among experimentalists, but only a handful of studies have been done on electrospun fiber membranes with zwitterionic additives, mostly focused on biomedical and tissue engineering applications . Very little experimental work has been done with specific interest in filtration applications; this makes our study unique.…”

Section: Introductionmentioning

confidence: 99%

Electrospun fiber membranes from blends of poly(vinylidene fluoride) with fouling‐resistant zwitterionic copolymers

Govinna

Kaner

Ceasar

et al. 2018

Polymer International

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Nonwoven super‐hydrophobic fiber membranes have potential applications in oil–water separation and membrane distillation, but fouling negatively impacts both applications. Membranes were prepared from blends comprising poly(vinylidene fluoride) (PVDF) and random zwitterionic copolymers of poly(methyl methacrylate) (PMMA) with sulfobetaine methacrylate (SBMA) or with sulfobetaine‐2‐vinylpyridine (SB2VP). PVDF imparts mechanical strength to the membrane, while the copolymers enhance fouling resistance. Blend composition was varied by controlling the PVDF‐to‐copolymer ratio. Nonwoven fiber membranes were obtained by electrospinning solutions of PVDF and the copolymers in a mixed solvent of N,N‐dimethylacetamide and acetone. The PVDF crystal phases and crystallinities of the blends were studied using wide‐angle X‐ray diffraction and differential scanning calorimetry (DSC). PVDF crystallized preferentially into its polar β‐phase, though its degree of crystallinity was reduced with increased addition of the random copolymers. Thermogravimetry (TG) showed that the degradation temperatures varied systematically with blend composition. PVDF blends with either copolymer showed significant increase of fouling resistance. Membranes prepared from blends containing 10% P(MMA‐ran‐SB2VP) had the highest fouling resistance, with a fivefold decrease in protein adsorption on the surface, compared to homopolymer PVDF. They also exhibited higher pure water flux, and better oil removal in oil–water separation experiments. © 2018 Society of Chemical Industry

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“…Bjorge et al evaluated the use of nanofibers as microfiltration membranes, spun by an innovative electrospinning technique, in water filtration applications. The produced flat‐sheet non‐woven polyamide NF membranes with a mean pore size of 0.4 μm (fiber diameter between 50 and 100 nm and thickness of 120 μm) were applied for wastewater treatment in a laboratory‐scale submerged membrane bioreactor (MBR).…”

Section: Resultsmentioning

confidence: 99%

Fabrication of electrospun keratin nanofiber membranes for air and water treatment

Figoli

Ursino

Ramírez

et al. 2019

Polymer Engineering & Sci

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Keratin proteins extracted from wool fibers by sulfitolysis were electrospun for the production of active nanofiber membranes (NFMs). The keratin NFMs were composited with nylon woven fabric for improving their mechanical properties as a filtration material. The prepared membranes were characterized in terms of morphology, pore size, contact angle, and performance of water and air permeability. Experimental data showed that most of investigated parameters were affected by the electrospinning time: that is, roughness rose by increasing the electrospinning time, while the narrowest pore size distribution was obtained at the longest electrospinning time (2 h). The pure water permeability (PWP) was greater for the produced NFMs than for the commercial microfiltration membranes and decreased by increasing the electrospinning time. At the longest electrospinning time, the produced NFMs showed a PWP of about 45.7 m3/m2 h bar, which is a value greater than those obtained by conventional materials used in water filtration, including microfiltration membranes. According to the data of contact angle measurements, the high hydrophobicity of NFMs membranes could reinforce their stability in water. Other potential applications could be venting, adsorption of VOCs, and separation of oils from oil/water emulsions. POLYM. ENG. SCI., 59:1472–1478 2019. © 2019 Society of Plastics Engineers

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Initial testing of electrospun nanofibre filters in water filtration applications

Cited by 14 publications

References 15 publications

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Electrospun fiber membranes from blends of poly(vinylidene fluoride) with fouling‐resistant zwitterionic copolymers

Fabrication of electrospun keratin nanofiber membranes for air and water treatment

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