Improved Hydrogen Separation Using Hybrid Membrane Composed of Nanodiamonds and P84 Copolyimide

Pulyalina, Alexandra; Polotskaya, G. A.; Rostovtseva, Valeriia; Pientka, Z.; Тойкка, А. М.

doi:10.3390/polym10080828

Cited by 21 publications

(16 citation statements)

References 52 publications

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“…Thus, the PI-PM membrane has a considerable methanol capacity when separating the methanol/MTBE solutions. In our previous works [12,20], water contact angles were measured for various polyimide membranes: P84 (72.0 • ) and thermally rearranged polyimide (73.1 • ). It is indicating the similar wettability of polyimide membranes, which confirmed the data validity for PI-PM membrane.…”

Section: Membrane Characterizationmentioning

confidence: 99%

Polyimide Asymmetric Membrane vs. Dense Film for Purification of MTBE Oxygenate by Pervaporation

et al. 2020

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Membrane properties are determined by their morphology, which may be symmetric (dense) or asymmetric (dense/porous). Two membrane types based on the poly[(4,4′-oxydiphenylene)pyromelliteimide] (symmetric dense and asymmetric dense/porous) were prepared for a comparative study of morphology, physical properties, and transport characteristics in the pervaporation of methanol/MTBE mixture over a wide range of concentrations including the azeotropic composition. The asymmetric membrane is a good example of improving the transport properties of the polyimide by creating structure composed of a thin dense top layer on the surface of sponge-like microporous substrate. It was found that the use of the asymmetric membrane allows increasing the total flux in separation of azeotropic mixture by 15 times as compared with the dense membrane.

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Section: Membrane Characterizationmentioning

confidence: 99%

Polyimide Asymmetric Membrane vs. Dense Film for Purification of MTBE Oxygenate by Pervaporation

et al. 2020

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“…The fabrication of membrane has a similar purpose, which is to build a separation mechanism process to obtain the desired results. Besides that, the structure of membrane is essentially made of permeable layer that act as the separation barrier system [5]. These barriers play important rule to allows certain molecules or particles to enter and exits the permeable layer.…”

Section: *Author For Correspondencementioning

confidence: 99%

“…Furthermore, membrane classifications are depending on the size of the pore structure. The smaller and denser the morphology of the membrane, the harder for any particle to pass through it [5].…”

Section: *Author For Correspondencementioning

confidence: 99%

“…For instance, in Malaysia where we are having a tropical weather with average of 29ºC all year around where air conditioner is required to chill and reduce the indoor air temperature for thermal comfort. And besides cooling the surrounding air, most of air conditioning system has been installed with membrane filter that able to filter out and capture dust, pollen, mites, smokes and other foreign particle in the air that might be harmful to people with sensitive health conditions [5]. By having these machines installed, the indoor air quality has been improved and provide a better air ventilation and circulation for the residence.…”

Section: A Membrane Technology In Our Daily Livesmentioning

confidence: 99%

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Characteristic and performance of polysulphone-polyethylene glycol synthetic hybrid membrane in water purification system

Jainudin¹,

Abdullah²,

Jaafar³

et al. 2021

IJATEE

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In the fast-changing modern world, fabrication of membrane is one of the rising technologies. Although membrane fabrication is mostly used in the separation process, most people are still unaware of the capabilities of the membrane sheet could give a strong impact on the finishing product outcome. Membrane fouling where the accumulation of particles in the pores and surfaces of the hybrid membrane one of the major highlights in membrane fabrication process. This research is mainly focused on identifying the optimum formulation of hybrid polymer membrane fabrications. This study also to investigate the characteristic, morphology and performance of the optimum hybrid polymer membrane. Fabrications of Flat sheet asymmetric polymeric synthetic hybrid membrane with the combinations of Polysulfone (PSF), Polyethylene Glycol (PEG) and 1-methyl-2-pyrrolidone (NMD) as the solvent has been conducted with five (5) different formulations. In order to test the characteristics of the synthetic hybrid membranes from membrane sheet for five (5) different formulation have undergone Tensile Strength Test, Permeate Flux Test, NaCl Rejection Test and Fourier-Transform Infrared (FTIR) Spectroscopy. The optimum performance of the synthetic hybrid membrane 3 (M3) has been obtained. Membrane (M3) was further analyzed with Scanning Electron Microscopy (SEM) to determine its morphology.The hybrid membrane (M3) was tested in a wastewater filtration system to determine the performance of the particles removal capabilities. The produced formulation membrane (M3) has created a Microporous membrane in 0.35 -0.37 μm pore size, which was suitable to filter out particles in the wastewater.

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“…Modification of polymers with inorganic nanoparticles makes it possible to improve the transport characteristics of the membrane material. At the previous stage of research, a hybrid gas-separation membrane containing 1 wt % of nanodiamonds (NDs) in the P84 copolyimide matrix was developed [19]. The introduction of NDs into the membrane led to an increase in selectivity during the separation of hydrogen from gas mixtures formed during steam methane reforming, namely, H 2 , CO 2 , and CH 4 .…”

Section: Introductionmentioning

confidence: 99%

Pervaporation Purification of Oxygenate from an Ethyl tert-Butyl Ether/Ethanol Azeotropic Mixture

Pulyalina

Putintseva

Polotskaya

et al. 2019

Membr. Membr. Technol.

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Ethyl tert-butyl ether (ETBE) is one of the most promising oxygenates used as high-octane components of fuels. A method to purify ETBE from an ethanol/ETBE azeotropic mixture formed during industrial synthesis is pervaporation. In this study, hybrid membranes containing nanodiamond particles incorporated into the P84 copolyimide matrix have been synthesized for the pervaporation purification of ETBE. The membrane structure has been studied by scanning electron microscopy and via determining the experimental and theoretical density and free volume. The transport properties of the membranes have been determined in sorption and pervaporation experiments. It has been shown that the introduction of up to 1 wt % of nanodiamonds in the P84 matrix leads to an increase in the main mass transfer parameters, namely, the flux and the separation factor of the azeotropic mixture.

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Improved Hydrogen Separation Using Hybrid Membrane Composed of Nanodiamonds and P84 Copolyimide

Cited by 21 publications

References 52 publications

Polyimide Asymmetric Membrane vs. Dense Film for Purification of MTBE Oxygenate by Pervaporation

Polyimide Asymmetric Membrane vs. Dense Film for Purification of MTBE Oxygenate by Pervaporation

Characteristic and performance of polysulphone-polyethylene glycol synthetic hybrid membrane in water purification system

Pervaporation Purification of Oxygenate from an Ethyl tert-Butyl Ether/Ethanol Azeotropic Mixture

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