Surface modification of polyvinylidene fluoride (PVDF) membrane via radiation grafting: novel mechanisms underlying the interesting enhanced membrane performance

Shen, Liguo; Feng, Shushu; Li, Jianxi; Chen, Jianrong; Li, Fengquan; Lin, Hongjun; Yu, Genying

doi:10.1038/s41598-017-02605-3

Cited by 96 publications

(42 citation statements)

References 54 publications

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“…To date, a variety of strategies have been employed to fabricate hydrophilic PVDF membranes, including coating [ 17 ], adsorption [ 18 ], plasma treatment [ 19 ], blending [ 20 ] and surface grafting polymerization [ 21 ]. Among these, published research results thus far have been focused on PVDF membranes fabricated by nanoparticle coating, due to the unique electronic, magnetic and optical properties of nanoparticles, which would greatly improve the capabilities of polymers [ 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of TiO2/g-C3N4/PVDF Composite Membrane with Enhanced Physical Properties

Wang

Gong

Qian³

2018

Membranes

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TiO2/g-C3N4/PVDF composite membranes were prepared by a phase inversion method. A comparison of the performance and morphology was carried out among pure PVDF, g-C3N4/PVDF, TiO2/PVDF and TiO2/g-C3N4/PVDF composite membranes. The results of permeability and instrumental analysis indicated that TiO2 and g-C3N4 organic-inorganic composites obviously changed the performance and structure of the PVDF membranes. The porosity and water content of 0.75TiO2/0.25g-C3N4/PVDF composite membranes were 97.3 and 188.3 L/(m2·h), respectively. The porosity and water content of the 0.75TiO2/0.25g-C3N4 membranes were increased by 20.8% and 27.4%, respectively, compared with that of pure PVDF membranes. This suggested that the combination of organic-inorganic composite with PVDF could remarkably improve UTS, membrane porosity and water content.

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Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of TiO2/g-C3N4/PVDF Composite Membrane with Enhanced Physical Properties

Wang

Gong

Qian³

2018

Membranes

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“…Antai et al [173][174][175][176][177][178][179][180][181][182][183][184][185][186][187] ) within GO was done via three different methods such as Pre-incorporation, Post-incorporation and Filter-incorporation. Metal cations used for membrane preparation used were non-toxic, environment friendly and cheap [188][189][190][191][192][193][194].…”

Section: Role Of Graphene Oxide In Polymer Nano-composite Membranesmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

188

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During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

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“…Shen et al . studied the BSA separation of the PVDF membrane in presence of a hydrophilic grafting agent such as hydroxyl ethyl acrylate . The grafted membrane shows higher BSA flux than the pure water flux due to the electrical double layer compression.…”

Section: Resultsmentioning

confidence: 99%

Gradient crystallinity and its influence on the poly(vinylidene fluoride)/poly(methyl methacrylate) membrane‐derived by immersion precipitation method

Remanan

Ghosh

Das

et al. 2019

J of Applied Polymer Sci

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Herein, phase inversion poly(vinylidene fluoride)/poly(methyl methacrylate) (PVDF/PMMA) microporous membranes were prepared at various PMMA concentration by immersion precipitation method. Increment in the PMMA concentration has a significant influence in the PVDF membrane crystallinity, which is studied by differential scanning calorimeter, X-ray diffractometer, and smallangle X-ray scattering analyses. Properties such as membrane bulk structure, porosity, hydrophilicity, mechanical stability, and water flux vary in terms of PMMA concentration. Porosity is increased, and tensile strength decreased when PMMA concentration is beyond 30 wt %. Thermodynamic instability during the liquid to solid phase separation and variation in the crystallinity has an intense effect on these membrane properties. Then, 70/30 blend membrane selected as optimum composition owing to the high porosity and pure water flux compared to other compositions. This membrane is modified with a composite filler derived from the graphene oxide and titanate crosslinked by chitosan. The antibacterial, antifouling, and bovine serum albumin separation studies reveal that the developed nanocomposite membrane is a potential candidate for the separation application.Polymer blending is a facile strategy to design new materials with excellent properties without compromising the matrix polymer properties. In general, most of the polymer blends are immiscible and which leads to coarse morphology due to interfacial tension between the phases. 16 poly(methyl methacrylate) (PMMA) form the upper critical solution temperature (UCST) blend with PVDF polymer and phase separate upon cooling. Addition of this amorphous polymer changes the PVDF microstructure, which leads to the change in overall membrane properties. 17-20 PMMA found compatible with PVDF at its amorphous state. Aid et al. studied the thermodynamic miscibility of the PVDF in presence of Additional Supporting Information may be found in the online version of this article.

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Surface modification of polyvinylidene fluoride (PVDF) membrane via radiation grafting: novel mechanisms underlying the interesting enhanced membrane performance

Cited by 96 publications

References 54 publications

Preparation and Characterization of TiO2/g-C3N4/PVDF Composite Membrane with Enhanced Physical Properties

Preparation and Characterization of TiO2/g-C3N4/PVDF Composite Membrane with Enhanced Physical Properties

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Gradient crystallinity and its influence on the poly(vinylidene fluoride)/poly(methyl methacrylate) membrane‐derived by immersion precipitation method

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