Comparative performance evaluations of nanomaterials mixed polysulfone: A scale-up approach through vacuum enhanced direct contact membrane distillation for water desalination

Fahmey, Mohamed S.; El‐Aassar, Abdel Hameed M.; M.Abo-Elfadel, Mustafa; Orabi, Adel S.; Das, Rasel

doi:10.1016/j.desal.2017.08.020

Cited by 35 publications

(13 citation statements)

References 20 publications

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“…Today, using nanoparticles as additives in the polymeric composite membrane fabrication is a cutting-edge area of membrane science. Nanoparticles, such as carbon nanotubes [118], multi-walled carbon nanotubes [119], silica nanoparticles [120,121], silver nanoparticles [122], titanium oxide nanoparticles [123] and ZnO nanoparticles [124], have been used as fillers in polymer composite membranes and the large surface area to volume ratio resulted in strong interfacial interactions between the nanoparticles and the surrounding polymer [125,126,127]. Table 4 reports on typical additives used for PS composite membranes.…”

Section: Methods Of Preparationmentioning

confidence: 99%

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

2019

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Porous polymeric membranes have emerged as the core technology in the field of separation. But some challenges remain for several methods used for membrane fabrication, suggesting the need for a critical review of the literature. We present here an overview on porous polymeric membrane preparation and characterization for two commonly used polymers: polysulfone and poly (vinylidene fluoride). Five different methods for membrane fabrication are introduced: non-solvent induced phase separation, vapor-induced phase separation, electrospinning, track etching and sintering. The key factors of each method are discussed, including the solvent and non-solvent system type and composition, the polymer solution composition and concentration, the processing parameters, and the ambient conditions. To evaluate these methods, a brief description on membrane characterization is given related to morphology and performance. One objective of this review is to present the basics for selecting an appropriate method and membrane fabrication systems with appropriate processing conditions to produce membranes with the desired morphology, performance and stability, as well as to select the best methods to determine these properties.

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Section: Methods Of Preparationmentioning

confidence: 99%

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

2019

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“…It is noted here that CNTs have been used mostly as an additive to polymeric membranes to enhance the performance in MD applications 27 by increasing hydrophobicity and porosity 28,29 or roughness. 30 An exception was the CNT buckypaper that was obtained by dispersing CNTs in a solvent, ltering the CNTs, and then drying to form a mat of CNTs.…”

Section: Resultsmentioning

confidence: 99%

High-permeability vacuum membrane distillation utilizing mechanically compressed carbon nanotube membranes

et al. 2022

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“…In addition to PVDF, other polymers employed in the development of advanced MD membranes include: & Polyethylene imide [106] & Polysulfone (PS) [107] & Ethylene chlorotrifluoroethylene (ECTFE) [108] & PP [109] Examples of other membrane formulations producing highly hydrophobic MD membranes include:…”

Section: Phase Inversion Membranesmentioning

confidence: 99%

Membrane distillation: recent technological developments and advancements in membrane materials

et al. 2021

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Membrane distillation (MD) is a novel desalination technology that has potential to produce distilled quality water from high salinity brine streams. The driving force for MD is the vapor pressure difference across a hydrophobic membrane resulting in transfer of water vapor from hot to cold side. This vapor contacts a cold surface and condenses to produce distillate. This paper reviews recent and/or multi-year research programs that focused on MD pilot or field testing. The various investigations concluded that while MD can produce distilled water quality, the energy efficiency remains the key bottleneck for future deployment of MD. Membrane wetting and fouling also presents key challenges for desalination due to both the high salinity and the presence of organics in the feed water. The authors contacted several MD vendors requesting updates on their latest products and technology developments. MD vendors with innovative module designs, some of which promise a step change in performance, have recently emerged on the market. In addition to water desalination, MD has a wide range of industrial applications such as hydrogen sulfide removal, the treatment of wastewater from the pharmaceutical, metal finishing industries, direct sewer mining, oily wastewater, and water recovery from flue gas. This paper also reviews novel membrane chemistries with emphasis on membranes prepared by phase inversion and electrospinning techniques to which nanomaterials have been added. The primary objectives in adding various nanomaterials (e.g., carbon nanotubes, graphene, silicon dioxide, fluorinated compounds) are to increase hydrophobicity (to reduce wetting) and increase mass transfer rates (to increase flux and lower cost).

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Comparative performance evaluations of nanomaterials mixed polysulfone: A scale-up approach through vacuum enhanced direct contact membrane distillation for water desalination

Cited by 35 publications

References 20 publications

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

High-permeability vacuum membrane distillation utilizing mechanically compressed carbon nanotube membranes

Membrane distillation: recent technological developments and advancements in membrane materials

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