Preparation and characterization of hyperthin-skinned and high performances asymmetric polyethersulfone membrane for gas separation

Ismail, Ahmad Fauzi; Ridzuan, Norida; Rahman, Wan Aizan Wan Abdul; Matsuura, T.; Hashemifard, S.A.

doi:10.1016/j.desal.2010.10.015

Cited by 32 publications

(29 citation statements)

References 31 publications

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“…The possible explanation for this phenomenon is the change in viscosity due to the higher clay content. High viscosity created a barrier for the nonsolvent molecules to enter by reducing the diffusion which leads to a delayed localized phase separation [10]. As can be seen from Fig.…”

Section: Dispersion Of Clay Particles and Morphological Properties Ofmentioning

confidence: 95%

Sustainability in Petrochemical Industry: Mixed Matrix Membranes from Polyethersulfone/Cloisite15a® for the Removal of Carbon Dioxide

Ismail

Mustafa

2015

Procedia CIRP

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Polyethersulfone membranes embedded with surfactant modified montmorillonite clay, cloisite15A were prepared. In this work, membrane fabrication protocols, microstructural characterization, and gas permeation measurements were combined to demonstrate the improvement in gas separation properties by the mixed matrix membrane. Permeability and selectivity of carbon dioxide and methane were determined for the unfilled and filled membranes with organoclay loadings of 0.25 to 1.0 wt%. Physical properties of the membranes were determined by using scanning electron microscopy (SEM). Unfilled membrane exhibits lower gas permeability and selectivity compared to the coated filled polyethersulfone membrane with 1.0 wt% achieved the highest selectivity (46.89) and CO 2 permeance of 3.71 GPU. Improvement in gas separation properties upon coating and thermal curing shows the potential of clay nanoflakes polymeric membrane as a promising approach in the separation of the gas pairs.

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Section: Dispersion Of Clay Particles and Morphological Properties Ofmentioning

confidence: 95%

Sustainability in Petrochemical Industry: Mixed Matrix Membranes from Polyethersulfone/Cloisite15a® for the Removal of Carbon Dioxide

Ismail

Mustafa

2015

Procedia CIRP

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“…4 (B2)). Because of the slow solvent outflow, some solvent could not leave the polymer solution and got trapped in the middle of the nascent MMMs, resulting in mutually isolated macrovoids [41,42]. In other words, as stated previously, the demixing occurs when stable polymer nuclei are formed and the presence of hydrophobic MMT in the system led to change the demixing rate in the nuclei from instantaneous to delayed eliminating formation of interconnected pores.…”

Section: Resultsmentioning

confidence: 80%

Fabrication and characterization of porous polyetherimide/montmorillonite hollow fiber mixed matrix membranes for CO2 absorption via membrane contactor

DashtArzhandi

Ismail

Matsuura

et al. 2015

Chemical Engineering Journal

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“…A thicker dense layer would provide higher mass transport resistance and lead to an improvement in the selectivity, but lower productivity as well [42]. However, correlating the effects of viscosity and performance for MMMs somewhat differs from the general understanding due to the presence of interfacial defects.…”

Section: Morphological Properties Of Membranesmentioning

confidence: 97%

Enhanced carbon dioxide separation by polyethersulfone (PES) mixed matrix membranes deposited with clay

Ismail¹,

Ismail

Mustafa

et al. 2015

Journal of Polymer Engineering

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Abstract Asymmetric mixed matrix membranes (MMMs) incorporating Cloisite15A (C15A) clay particles were prepared using solvent evaporation and phase inversion with polyethersulfone (PES) as the membrane matrix. C15A loadings varied at 1 wt% and 5 wt%. Membrane morphological and thermal properties were evaluated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Addition of the C15A favorably altered the microscopic structure of membranes from finger-like to homogeneous sponge-like structure as the loading increased. While the amorphous nature of MMMs was retained, the thermal stability was also found to be improved with a slight decrease in glass transition temperature (Tg). PES/C15A1 MMM showed the best gas transport properties, with 37% and 65% improvement in CO2 permeance and CO2/CH4 selectivity, respectively. Unlike 1 wt%, the loss in selectivity shown by 5 wt% clay loadings suggested that the interphase voids and extent of silicate layers dispersion play a significant role in the overall performance of MMMs.

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Preparation and characterization of hyperthin-skinned and high performances asymmetric polyethersulfone membrane for gas separation

Cited by 32 publications

References 31 publications

Sustainability in Petrochemical Industry: Mixed Matrix Membranes from Polyethersulfone/Cloisite15a® for the Removal of Carbon Dioxide

Sustainability in Petrochemical Industry: Mixed Matrix Membranes from Polyethersulfone/Cloisite15a® for the Removal of Carbon Dioxide

Fabrication and characterization of porous polyetherimide/montmorillonite hollow fiber mixed matrix membranes for CO2 absorption via membrane contactor

Enhanced carbon dioxide separation by polyethersulfone (PES) mixed matrix membranes deposited with clay

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