Comparison of permeability performance of PEBAX-1074/TiO2, PEBAX-1074/SiO2 and PEBAX-1074/Al2O3 nanocomposite membranes for CO2/CH4 separation

Azizi, Navid; Mohammadi, Toraj; Behbahani, Reza Mosayebi

doi:10.1016/j.cherd.2016.10.018

Cited by 124 publications

(57 citation statements)

References 55 publications

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“…This suggests that the interchain hydrogen bonding between the amide groups of Pebax chains at surface of membrane is partially broken by the presence of TiO 2 nanoparticles. This behavior was reported in previous studies, which focus on the effect of nanoparticles on Pebax membrane structure via solution blending method . These results can propose the interaction between TiO 2 nanoparticles and Pebax polymer chains.…”

Section: Resultssupporting

confidence: 85%

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Preparation and characterization of TiO₂/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Cheshomi

Pakizeh

Namvar–Mahboub

2018

Polymers for Advanced Techs

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New thin film composite (TFC) membrane was prepared via coating of Pebax on PSf‐PES blend membrane as support, and its application in wastewater treatment was investigated. To modify this membrane, hydrophilic TiO2 nanoparticles were coated on its surface at different loadings via dip coating technique. The as‐prepared membrane was characterized using Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), field emission SEM, and contact angle analysis. The Fourier transform infrared spectroscopy analysis and surface SEM images indicated that TiO2 was successfully coated on the membrane surface. In addition, the results stated that the hydrophilicity and roughness of membrane surface increased by addition of TiO2 nanoparticles. Performance of TFC and modified TFC membranes was evaluated through humic acid removal from aqueous solution. Maximum permeate flux and humic acid rejection were obtained at 0.03 and 0.01 wt% TiO2 loadings, respectively. Rejection was enhanced from 96.38% to 98.92% by the increase of feed concentration from 10 to 30 ppm. Additionally, membrane antifouling parameters at different pressures and feed concentration were determined. The results indicated that surface modification of membranes could be an effective method for improvement of membrane antifouling property.

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Section: Resultssupporting

confidence: 85%

“…This behavior was reported in previous studies, which focus on the effect of nanoparticles on Pebax membrane structure via solution blending method. 37 These results can propose the interaction between TiO 2 nanoparticles and Pebax polymer chains.…”

Section: Ha Adsorption Experimentsmentioning

confidence: 78%

Preparation and characterization of TiO₂/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Cheshomi

Pakizeh

Namvar–Mahboub

2018

Polymers for Advanced Techs

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“…These three parameters are dependent on the selection of solvent. As the molar volume of solvent increased, more space may be created between the molecules as it acts as a spacer in‐between the molecules 48 . At a molecular level, inter‐nodular chain fragments transpositions are intensely dependent on the size of the solvent molecules, which dissolve macromolecules in solution.…”

Section: Resultsmentioning

confidence: 99%

Pebax/MWCNTs‐NH₂ mixed matrix membranes for enhanced CO₂/N₂ separation

et al. 2020

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“…Conventional processes and traditional technologies such as amine‐based solvents and pressure‐swing adsorption have generally been applied to the separation of acidic gases from flue gases . Membrane technology has become a popular alternative owing to its advantages such as environmental friendliness, lower capital cost, and less energy consumption, and also better space utility, which enables it to be applied in inaccessible locations . Nevertheless, the production of membranes with higher gas selectivity and permeability plays an inspiring role in membrane technology compared with other separation techniques.…”

Section: Introductionmentioning

confidence: 99%

Magnetic nanoFe₂O₃ – incorporated PEBA membranes for CO₂/CH₄ and CO₂/N₂ separation: experimental study and grand canonical Monte Carlo and molecular dynamics simulations

2019

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Mixed matrix membranes (MMMs) comprised of organic selective polymers and inorganic nano‐particles under the name of fillers have attracted much attention in the field of gas separation. In this study, poly (amide‐6‐b‐ethylene oxide) [PEBA]/Fe2O3 mixed matrix membranes were prepared using the dry phase separation technique with ethanol / water (70/30 wt%) as solvent. Various amount of Fe2O3 nanoparticles were chosen to disperse within the polymer matrix (0, 0.5, 1, 1.5 and 2 wt% of polymer). To prepare this type of novel membrane, a magnetic field of 0.3 T was used to align the position of NPs. The structural properties and surface morphology of prepared membranes were characterized by field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). Field emission scanning electron microscopy analysis was also used to study the physical bonding. Phase identification and crystallinity, effective area, and distribution of pore size were investigated by X‐ray diffraction (XRD) and Brunauer–Emmett–Teller (BET) analysis. Carbon dioxide permeability through these membranes increased with pressure in the range of 2 to 14 bar. Magnetic membrane loaded with 1.5 wt% of Fe2O3 gave the best performance: CO2 permeability, CO2/CH4, and CO2/N2 selectivity were enhanced by 30, 42 and 81%, compared to a pure membrane, respectively. The results indicated that the magnetic MMMs gave better separation performance than pure membranes. Molecular simulation has also been used to investigate the structural and transport properties of fabricated membranes. Structural characterizations like radial distribution function (RDF), fractional free volume (FFV), and X‐ray diffraction were applied to the simulated membrane cells. Grand canonical Monte Carlo (GCMC) and molecular dynamic (MD) simulations, were used to calculate the selectivity and diffusivity of membranes. Results from experimental tests and simulation runs revealed that the selectivity and permeability of fabricated and simulated membranes are consistent. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Comparison of permeability performance of PEBAX-1074/TiO2, PEBAX-1074/SiO2 and PEBAX-1074/Al2O3 nanocomposite membranes for CO2/CH4 separation

Cited by 124 publications

References 55 publications

Preparation and characterization of TiO₂/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Preparation and characterization of TiO₂/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Pebax/MWCNTs‐NH₂ mixed matrix membranes for enhanced CO₂/N₂ separation

Magnetic nanoFe₂O₃ – incorporated PEBA membranes for CO₂/CH₄ and CO₂/N₂ separation: experimental study and grand canonical Monte Carlo and molecular dynamics simulations

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Comparison of permeability performance of PEBAX-1074/TiO2, PEBAX-1074/SiO2 and PEBAX-1074/Al2O3 nanocomposite membranes for CO2/CH4 separation

Cited by 124 publications

References 55 publications

Preparation and characterization of TiO2/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Preparation and characterization of TiO2/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Pebax/MWCNTs‐NH2 mixed matrix membranes for enhanced CO2/N2 separation

Magnetic nanoFe2O3 – incorporated PEBA membranes for CO2/CH4 and CO2/N2 separation: experimental study and grand canonical Monte Carlo and molecular dynamics simulations

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Product

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Preparation and characterization of TiO₂/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Preparation and characterization of TiO₂/Pebax/(PSf‐PES) thin film nanocomposite membrane for humic acid removal from water

Pebax/MWCNTs‐NH₂ mixed matrix membranes for enhanced CO₂/N₂ separation

Magnetic nanoFe₂O₃ – incorporated PEBA membranes for CO₂/CH₄ and CO₂/N₂ separation: experimental study and grand canonical Monte Carlo and molecular dynamics simulations