Anti-fouling piezoelectric PVDF membrane: Effect of morphology on dielectric and piezoelectric properties

Su, Yu Ping; Sim, Lee Nuang; Li, Xin; Coster, H.G.L.; Chong, Tzyy Haur

doi:10.1016/j.memsci.2020.118818

Cited by 47 publications

(32 citation statements)

References 42 publications

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“…However, membrane filtration is susceptible to fouling, which reduces the isolation efficiency [62]. To reduce fouling, membrane scientists have been actively researching novel membrane materials and strategies [63,64]. Food scientists will need to work closely with engineers to ensure that these membranes are compatible and safe for food applications.…”

Section: Plant Protein Fractionationmentioning

confidence: 99%

Plant Proteins for Future Foods: A Roadmap

Sim

Srv

Chiang

et al. 2021

Foods

166

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Protein calories consumed by people all over the world approximate 15–20% of their energy intake. This makes protein a major nutritional imperative. Today, we are facing an unprecedented challenge to produce and distribute adequate protein to feed over nine billion people by 2050, in an environmentally sustainable and affordable way. Plant-based proteins present a promising solution to our nutritional needs due to their long history of crop use and cultivation, lower cost of production, and easy access in many parts of the world. However, plant proteins have comparatively poor functionality, defined as poor solubility, foaming, emulsifying, and gelling properties, limiting their use in food products. Relative to animal proteins, including dairy products, plant protein technology is still in its infancy. To bridge this gap, advances in plant protein ingredient development and the knowledge to construct plant-based foods are sorely needed. This review focuses on some salient features in the science and technology of plant proteins, providing the current state of the art and highlighting new research directions. It focuses on how manipulating plant protein structures during protein extraction, fractionation, and modification can considerably enhance protein functionality. To create novel plant-based foods, important considerations such as protein–polysaccharide interactions, the inclusion of plant protein-generated flavors, and some novel techniques to structure plant proteins are discussed. Finally, the attention to nutrition as a compass to navigate the plant protein roadmap is also considered.

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Section: Plant Protein Fractionationmentioning

confidence: 99%

Plant Proteins for Future Foods: A Roadmap

Sim

Srv

Chiang

et al. 2021

Foods

166

View full text Add to dashboard Cite

show abstract

“…Coster et al found that "poling" commercial α-phase dominant PVDF membranes in an intense AC electric field improved their flux by 136% on average (Coster et al 2011). Su et al reported that membranes with finger-like structures had higher dielectric strengths and also exhibited more piezoelectric properties, reducing the transmembrane pressure increase by 66% after poling these membranes (Su et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Poly(vinylidene fluoride) (PVDF) membrane fabrication with an ionic liquid via non-solvent thermally induced phase separation (N-TIPs)

Wang

Zhou

et al. 2022

Appl Water Sci

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In this paper, ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate was the first time successfully utilized as single solvent in preparing the PVDF membrane with a good performance by N-TIPs method. The effects of quenching temperature and hydrophilic additive content on the morphology, permeability, and strength of the membranes were studied. All the prepared PVDF membranes were proved to be a pure β phase by FTIR and XRD, possessing a narrow pore size distribution. By adjusting quenching temperature and additive content, membranes with a flux of 383.2 L/m2 h and concentrated pore diameter of 26 nm obtained.

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“…PVDF contains a large concentration of charge carriers as a result of the strong electron-withdrawing properties of its functional group (-C-F) and its high anodic stability. PVDF is receiving great attention for its piezoelectric properties when compared to any other polymer [11]. PVDF is widely used in energy-related applications and specialties.…”

Section: Introductionmentioning

confidence: 99%

“…PVDF is used in many electronic applications and as sheathing for cables used in audio, video, and alarm systems. PVDF is used as a binder for the cathodes and anodes in lithium-ion batteries, and as a battery separator in Li-ion polymer systems [8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Strength enhancement of LiZnVO 4 nanoparticles incorporated with PVDF nanocomposites for high-performance lithium-ion battery application

Elashmawi

Ismail

Abdelghany

et al. 2022

Preprint

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This work aims to prepare LiZnVO4 nanoparticles and incorporate them into PVDF as a host polymeric material using the casting method for rechargeable Li-battery applications. The effect of LiZnVO4 on the structural and optical properties of the samples was studied using XRD, FT-IR, and UV-is techniques. Moreover, the electrical conductivity of the prepared films was studied. The XRD spectra show semicrystalline structure of PVDF and the rhombohedral structure of LiZnVO4. Scherer's equation was used to determine the crystallite size of LiZnVO4 which is nearly 83 nm. The interaction between PVDF and LiZnVO4 was approved by shifting some FT-IR bands. The band gap energies were decreased by increasing LiZnVO4 due to the density in the localized states in the mobility band gap in PVDF. The AC parameters as a function of frequency and temperature were investigated in detail. Both ε' and ε" had their maximum values at low frequencies and decreased as the frequency and temperature increased. The dielectric properties and tan δ were improved, particularly 5 wt% of LiZnVO4, which confirms the XRD and FT-IR results indicating their suitability as a suitable base material for designing and developing promising energy storage devices and lithium batteries.

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Anti-fouling piezoelectric PVDF membrane: Effect of morphology on dielectric and piezoelectric properties

Cited by 47 publications

References 42 publications

Plant Proteins for Future Foods: A Roadmap

Plant Proteins for Future Foods: A Roadmap

Poly(vinylidene fluoride) (PVDF) membrane fabrication with an ionic liquid via non-solvent thermally induced phase separation (N-TIPs)

Strength enhancement of LiZnVO 4 nanoparticles incorporated with PVDF nanocomposites for high-performance lithium-ion battery application

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