Fabrication of integrally skinned asymmetric membranes based on nanocomposite polyethersulfone by supercritical CO2 for gas separation

Adib, Hooman; Hassanajili, Shadi; Mowla, Dariush; Esmaeilzadeh, Feridun

doi:10.1016/j.supflu.2014.11.001

Cited by 20 publications

(10 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More researches have focused on making PES mixed‐matrix membranes and blend membranes. Adib et al . used integrally skinned asymmetric PES–silica membranes for gas separation.…”

Section: Introductionmentioning

confidence: 99%

“…When the temperature and pressure are increased, the gas permeation increases without any change in the membrane selectivity. In addition, the incorporation of silica nanoparticles in the membrane can lead to a higher CO 2 P and, consequently, a higher CO 2 /CH 4 selectivity . PES‐based mixed‐matrix membranes with the incorporation of different inorganic fillers have been studied by some authors .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gas‐separation behavior of poly(ether sulfone)–poly(ethylene glycol) blend membranes

Akbarian

Fakhar

Ameri

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

Poly(ether sulfone) (PES), because of its low chain mobility and high gas selectivity, was selected as a gas-separation membrane. Because poly(ethylene glycol) (PEG) contains polar ether groups favorable for carbon dioxide (CO 2 ) capture, we investigated the effects of PEG on the CO 2 /CH 4 and CO 2 /N 2 separation properties of PES-PEG blend membranes. PEG with different molecular weights (4000, 6000, and 10,000) and concentrations of up 30 wt % was added to PES. Scanning electron microscopy and wide-angle X-ray diffraction analyses on the blends confirmed the uniformity and dense surfaces of the membranes and no changes in the crystallinity, respectively. Fourier transform infrared spectra indicated good interactions between the PEG and PES segments. Gas permeation tests showed that with increasing PEG molecular weight, its weight fraction permeability of CH 4 and CO 2 increased, whereas the permeability of O 2 and N 2 decreased. The best composition of PES-PEG was a 70/30 ratio; with this composition, the selectivities of CO 2 /N 2 and CO 2 /CH 4 were enhanced by 64 and 14%, respectively, compared to that of the pure membrane.

show abstract

“…More researches have focused on making PES mixed‐matrix membranes and blend membranes. Adib et al . used integrally skinned asymmetric PES–silica membranes for gas separation.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gas‐separation behavior of poly(ether sulfone)–poly(ethylene glycol) blend membranes

Akbarian

Fakhar

Ameri

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…This event is related to smaller kinetic diameter and higher critical temperature of CO 2 as presented in Table 4. 61,62 These two factors identify the size and condensability of gases which control their diffusivity and solubility and in conclusion their permeability according to Equation (3). 47,63 In addition, CO 2 is a polar gas and can have good interaction with the polar segments of PEBAX such as ethylene oxide and carbonyl groups so its solubility is increased.…”

Section: Gas Permeation Resultsmentioning

confidence: 99%

Fabrication and characterization of dual layer PEBAX‐SiO₂/polyethersulfone nanocomposite membranes for separation of CO₂/CH₄ gases

Barzegar

Hassanajili

2021

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

A new method of fabricating thin film composite (TFC) membranes is presented through a one-step co-casting technique. In this method a dense layer of poly(ether-block-amide) (PEBAX-1657) was formed on a porous support of polyethersulfone (PES) in one step by immersing the cast films in a coagulation bath of n-hexane. To assess the impact of silica (SiO 2 ) nanoparticles on characteristics of the fabricated membranes, dual-layer nanocomposite membranes containing 2.5, 5, and 7.5 wt% of SiO 2 nanoparticles in the dense layer were also prepared. Physical and mechanical properties of membranes were evaluated using scanning electron microscopy (SEM), Fourier transformed infrared spectroscopy, X-ray diffraction, water contact angle and tensile strength measurements. SEM images revealed that a defect-free top-layer was formed on a porous substrate and both layers were adhered together properly. These images also showed that sub-layer's microstructure was affected by addition of SiO 2 nanoparticles to the PEBAX matrix. Gas permeation properties of membranes were recorded for pure CO 2 and CH 4 at room temperature and pressures in the range of 4-6 bars. Addition of SiO 2 nanoparticles up to 5 wt% enhanced CO 2 /CH 4 selectivity of the membranes, while at higher SiO 2 nanoparticles loading (7.5 wt%), the selectivity was reduced.

show abstract

“…Nevertheless, polymeric hollow fiber in integrally skinned configuration frequently suffered from physical aging and plasticization upon prolonged application due to their molecular orientation, thus restricting their diverse application [ 449 , 450 , 451 ]. To circumvent these drawbacks, proper tailoring on spinning parameters, the phase inversion process, and the chemical structure of polymer could simultaneously bring about significant enhancement to its separation performance as well as produce a hollow fiber with desirable separation performance with an ultrathin dense selective layer [ 66 , 89 , 452 , 453 , 454 ]. Alternatively, CO 2 conditioning [ 449 , 455 , 456 ] can be used to control the physical aging rate, while strategies such as chemical cross-linking [ 400 , 457 , 458 ], thermal cross-linking [ 45 , 447 , 459 , 460 , 461 ], thermal annealing [ 442 , 462 , 463 ], and polymer blending [ 28 , 36 , 110 ] would be the promising approaches to suppress CO 2 -induced plasticization in polymeric hollow fiber membranes.…”

Section: Applications Of Hollow Fiber Membranesmentioning

confidence: 99%

State-of-the-Art Organic- and Inorganic-Based Hollow Fiber Membranes in Liquid and Gas Applications: Looking Back and Beyond

Lau

Soh

et al. 2022

Membranes

View full text Add to dashboard Cite

The aggravation of environmental problems such as water scarcity and air pollution has called upon the need for a sustainable solution globally. Membrane technology, owing to its simplicity, sustainability, and cost-effectiveness, has emerged as one of the favorable technologies for water and air purification. Among all of the membrane configurations, hollow fiber membranes hold promise due to their outstanding packing density and ease of module assembly. Herein, this review systematically outlines the fundamentals of hollow fiber membranes, which comprise the structural analyses and phase inversion mechanism. Furthermore, illustrations of the latest advances in the fabrication of organic, inorganic, and composite hollow fiber membranes are presented. Key findings on the utilization of hollow fiber membranes in microfiltration (MF), nanofiltration (NF), reverse osmosis (RO), forward osmosis (FO), pervaporation, gas and vapor separation, membrane distillation, and membrane contactor are also reported. Moreover, the applications in nuclear waste treatment and biomedical fields such as hemodialysis and drug delivery are emphasized. Subsequently, the emerging R&D areas, precisely on green fabrication and modification techniques as well as sustainable materials for hollow fiber membranes, are highlighted. Last but not least, this review offers invigorating perspectives on the future directions for the design of next-generation hollow fiber membranes for various applications. As such, the comprehensive and critical insights gained in this review are anticipated to provide a new research doorway to stimulate the future development and optimization of hollow fiber membranes.

show abstract

Fabrication of integrally skinned asymmetric membranes based on nanocomposite polyethersulfone by supercritical CO2 for gas separation

Cited by 20 publications

References 38 publications

Gas‐separation behavior of poly(ether sulfone)–poly(ethylene glycol) blend membranes

Gas‐separation behavior of poly(ether sulfone)–poly(ethylene glycol) blend membranes

Fabrication and characterization of dual layer PEBAX‐SiO₂/polyethersulfone nanocomposite membranes for separation of CO₂/CH₄ gases

State-of-the-Art Organic- and Inorganic-Based Hollow Fiber Membranes in Liquid and Gas Applications: Looking Back and Beyond

Contact Info

Product

Resources

About

Fabrication of integrally skinned asymmetric membranes based on nanocomposite polyethersulfone by supercritical CO2 for gas separation

Cited by 20 publications

References 38 publications

Gas‐separation behavior of poly(ether sulfone)–poly(ethylene glycol) blend membranes

Gas‐separation behavior of poly(ether sulfone)–poly(ethylene glycol) blend membranes

Fabrication and characterization of dual layer PEBAX‐SiO2/polyethersulfone nanocomposite membranes for separation of CO2/CH4 gases

State-of-the-Art Organic- and Inorganic-Based Hollow Fiber Membranes in Liquid and Gas Applications: Looking Back and Beyond

Contact Info

Product

Resources

About

Fabrication and characterization of dual layer PEBAX‐SiO₂/polyethersulfone nanocomposite membranes for separation of CO₂/CH₄ gases