CO2/N2 Separation Properties of Polyimide-Based Mixed-Matrix Membranes Comprising UiO-66 with Various Functionalities

Nanocrystalline UiO-66 and its derivatives (containing -NH2, -Br, -(OH)2) were developed via pre-synthetic functionalization and incorporated into a polyimide membrane to develop a mixed-matrix membrane (MMM) for CO2/N2 separation. Incorporation of the non-functionalized UiO-66 nanocrystals into the polyimide membrane successfully improved CO2 permeability, with a slight decrease in CO2/N2 selectivity, owing to its large accessible surface area. The addition of other functional groups further improved the CO2/N2 selectivity of the polymeric membrane, with UiO-66-NH2, UiO-66-Br, and UiO-66-(OH)2 demonstrating improvements of 12%, 4%, and 17%, respectively. Further evaluation by solubility–diffusivity analysis revealed that the functionalized UiO-66 in MMMs can effectively increase CO2 diffusivity while suppressing N2 sorption, thus, resulting in improved CO2/N2 selectivity. Such results imply that the structural tuning of UiO-66 by the incorporation of various functional groups is an effective strategy to improve the CO2 separation performance of MMMs.

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Carbon Nanotubes Based Mixed Matrix Membrane for Gas Separation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.364.272 ◽

2011 ◽

Vol 364 ◽

pp. 272-277 ◽

Cited By ~ 4

Author(s):

S.M. Sanip ◽

A.F. Ismail ◽

P.S. Goh ◽

M.N.A. Norrdin ◽

T. Soga ◽

...

Keyword(s):

Electron Microscopy ◽

Carbon Nanotubes ◽

Gas Separation ◽

Polymer Matrix ◽

Current Trend ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Separation Performance ◽

Mixed Matrix ◽

Polyimide Membrane

Mixed matrix membranes (MMM) combine useful molecular sieving properties of inorganic fillers with the desirable mechanical and processing properties of polymers. The current trend in polymeric membranes is the incorporation of filler-like nanoparticles to improve the separation performance. Most MMM have shown higher gas permeabilities and improved gas selectivities compared to the corresponding pure polymer membranes. Carbon nanotubes based mixed matrix membrane was prepared by the solution casting method in which the functionalized multiwalled carbon nanotubes (f-MWNTs) were embedded into the polyimide membrane and the resulting membranes were characterized. The effect of nominal MWNTs content between 0.5 and 1.0 wt% on the gas separation properties were looked into. The as-prepared membranes were characterized for their morphology using field emission scanning electron microscopy (FESEM) and Transmission Electron Microscopy (TEM). The morphologies of the MMM also indicated that at 0.7 % loading of f-MWNTs, the structures of the MMM showed uniform finger-like structures which have facilitated the fast gas transport through the polymer matrix. It may also be concluded that addition of open ended and shortened MWNTs to the polymer matrix can improve its permeability by increasing diffusivity through the MWNTs smooth cavity.

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Membranes for Gas Separation Current Development and Challenges

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.773-774.1085 ◽

2015 ◽

Vol 773-774 ◽

pp. 1085-1090 ◽

Cited By ~ 1

Author(s):

Norwahyu Jusoh ◽

Yin Fong Yeong ◽

Kok Keong Lau ◽

Mohd Shariff Azmi

Keyword(s):

Gas Separation ◽

Polymeric Materials ◽

Membrane Technology ◽

Polymeric Membrane ◽

Inorganic Membrane ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Separation Performance ◽

Inorganic Membranes ◽

Mixed Matrix

—A new bang of natural gas demand has opened up the opportunities towards the utilization of membrane technology for the purification process.The advantages in terms of smaller footprint, lower weight, minimum utility requirement and low labor intensity make them appropriate for wide scale applications. Polymeric membrane is one of the greatest emerging fields in membrane material development. Nevertheless, the separation performance of the existing polymeric materials were reached a limit in the trade-off between permeability and selectivity. The development of inorganic material gives a significance improvement in membrane performance but it outrageously expensive for many applications and having complicated procedure during fabrication process have limit the application of inorganic membrane in gas separation. Thus, a rapid demand in membrane technology for gas separation and the effort toward seeking the membranes with higher permeability and selectivity has motivated the development of mixed matrix membrane. Mixed matrix membrane (MMM) which incorporating inorganic fillers in a polymer matrix is expected to overcome the limitations of the polymeric and inorganic membranes. Apart from an overview of the different membrane materials for gas separation, this paper also highlights the development of mixed matrix membrane and challenges in fabrication of mixed matrix membranes.

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Tailoring CO2/CH4 Separation Performance of Mixed Matrix Membranes by Using ZIF-8 Particles Functionalized with Different Amine Groups

Polymers ◽

10.3390/polym11122042 ◽

2019 ◽

Vol 11 (12) ◽

pp. 2042 ◽

Cited By ~ 1

Author(s):

Nadia Hartini Suhaimi ◽

Yin Fong Yeong ◽

Christine Wei Mann Ch’ng ◽

Norwahyu Jusoh

Keyword(s):

Functional Group ◽

Polymeric Membrane ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Separation Performance ◽

Mixed Matrix ◽

Different Types ◽

Amine Groups ◽

Analytical Tools ◽

Matrix Membranes

CO2 separation from CH4 by using mixed matrix membranes has received great attention due to its higher separation performance compared to neat polymeric membrane. However, Robeson’s trade-off between permeability and selectivity still remains a major challenge for mixed matrix membrane in CO2/CH4 separation. In this work, we report the preparation, characterization and CO2/CH4 gas separation properties of mixed matrix membranes containing 6FDA-durene polyimide and ZIF-8 particles functionalized with different types of amine groups. The purpose of introducing amino-functional groups into the filler is to improve the interaction between the filler and polymer, thus enhancing the CO2 /CH4 separation properties. ZIF-8 were functionalized with three differents amino-functional group including 3-(Trimethoxysilyl)propylamine (APTMS), N-[3-(Dimethoxymethylsilyl)propyl ethylenediamine (AAPTMS) and N1-(3-Trimethoxysilylpropyl) diethylenetriamine (AEPTMS). The structural and morphology properties of the resultant membranes were characterized by using different analytical tools. Subsequently, the permeability of CO2 and CH4 gases over the resultant membranes were measured. The results showed that the membrane containing 0.5 wt% AAPTMS-functionalized ZIF-8 in 6FDA- durene polymer matrix displayed highest CO2 permeability of 825 Barrer and CO2/CH4 ideal selectivity of 26.2, which successfully lies on Robeson upper bound limit.

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Composite amine mixed matrix membranes for high-pressure CO 2 -CH 4 separation: synthesis, characterization and performance evaluation

Royal Society Open Science ◽

10.1098/rsos.200795 ◽

2020 ◽

Vol 7 (9) ◽

pp. 200795

Author(s):

Nur Aqilah Bt Fauzan ◽

Hilmi Mukhtar ◽

Rizwan Nasir ◽

Dzeti Farhah Bt Mohshim ◽

Naviinthiran Arasu ◽

...

Keyword(s):

High Pressure ◽

Polymeric Membrane ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Asymmetric Structure ◽

Separation Performance ◽

Mixed Matrix ◽

Porous Support ◽

Phase Inversion Technique ◽

Matrix Membranes

The key challenge in the synthesis of composite mixed matrix membrane (MMMs) is the incompatible membrane fabrication using porous support in the dry–wet phase inversion technique. The key objective of this research is to synthesize thin composite ternary (amine) mixed matrix membranes on microporous support by incorporating 10 wt% of carbon molecular sieve (CMS) and 5–15 wt% of diethanolamine (DEA) in polyethersulfone (PES) dope solution for the separation of carbon dioxide (CO 2 ) from methane (CH 4 ) at high-pressure applications. The developed membranes were evaluated for their morphological structure, thermal and mechanical stabilities, functional groups, as well as for CO 2 -CH 4 separation performance at high pressure (10–30 bar). The results showed that the developed membranes have asymmetric structure, and they are mechanically strong at 30 bar. This new class of PES/CMS/DEA composite MMMs exhibited improved gas permeance compared to pure PES composite polymeric membrane. CO 2 -CH 4 perm-selectivity enhanced from 8.15 to 16.04 at 15 wt% of DEA at 30 bar pressure. The performance of amine composite MMMs is theoretically predicted using a modified Maxwell model. The predictions were in good agreement with experimental data after applying the optimized values with AARE % = ∼less than 2% and R 2 = 0.99.

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Leveraging Nanocrystal HKUST-1 in Mixed-Matrix Membranes for Ethylene/Ethane Separation

Membranes ◽

10.3390/membranes10040074 ◽

2020 ◽

Vol 10 (4) ◽

pp. 74 ◽

Cited By ~ 6

Author(s):

Chong Yang Chuah ◽

S.A.S.C. Samarasinghe ◽

Wen Li ◽

Kunli Goh ◽

Tae-Hyun Bae

Keyword(s):

Metal Organic Framework ◽

Accessible Surface Area ◽

Gas Permeation ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Mixed Matrix ◽

Membrane Fabrication ◽

Metal Organic ◽

Accessible Surface ◽

Matrix Membranes

The energy-intensive ethylene/ethane separation process is a key challenge to the petrochemical industry. HKUST-1, a metal–organic framework (MOF) which possesses high accessible surface area and porosity, is utilized in mixed-matrix membrane fabrication to investigate its potential for improving the performance for C2H4/C2H6 separation. Prior to membrane fabrication and gas permeation analysis, nanocrystal HKUST-1 was first synthesized. This step is critical in order to ensure that defect-free mixed-matrix membranes can be formed. Then, polyimide-based polymers, ODPA-TMPDA and 6FDA-TMPDA, were chosen as the matrices. Our findings revealed that 20 wt% loading of HKUST-1 was capable of improving C2H4 permeability (155% for ODPA-TMPDA and 69% for 6FDA-TMPDA) without excessively sacrificing the C2H4/C2H6 selectivity. The C2H4 and C2H6 diffusivity, as well as solubility, were also improved substantially as compared to the pure polymeric membranes. Overall, our results edge near the upper bound, confirming the effectiveness of leveraging nanocrystal HKUST-1 filler for performance enhancements in mixed-matrix membranes for C2H4/C2H6 separation.

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Multiple Amine-Contained POSS-Functionalized Organosilica Membranes for Gas Separation

Membranes ◽

10.3390/membranes11030194 ◽

2021 ◽

Vol 11 (3) ◽

pp. 194

Author(s):

Xiuxiu Ren ◽

Masakoto Kanezashi ◽

Meng Guo ◽

Rong Xu ◽

Jing Zhong ◽

...

Keyword(s):

Gas Separation ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Separation Performance ◽

Hybrid Membranes ◽

Mixed Matrix ◽

Translation Model ◽

Good Thermal Stability ◽

Oligomeric Silsesquioxane

A new polyhedral oligomeric silsesquioxane (POSS) designed with eight –(CH2)3–NH–(CH2)2–NH2 groups (PNEN) at its apexes was used as nanocomposite uploading into 1,2-bis(triethoxysilyl)ethane (BTESE)-derived organosilica to prepare mixed matrix membranes (MMMs) for gas separation. The mixtures of BTESE-PNEN were uniform with particle size of around 31 nm, which is larger than that of pure BTESE sols. The characterization of thermogravimetric (TG) and gas permeance indicates good thermal stability. A similar amine-contained material of 3-aminopropyltriethoxysilane (APTES) was doped into BTESE to prepare hybrid membranes through a copolymerized strategy as comparison. The pore size of the BTESE-PNEN membrane evaluated through a modified gas-translation model was larger than that of the BTESE-APTES hybrid membrane at the same concentration of additions, which resulted in different separation performance. The low values of Ep(CO2)-Ep(N2) and Ep(N2) for the BTESE-PNEN membrane at a low concentration of PNEN were close to those of copolymerized BTESE-APTES-related hybrid membranes, which illustrates a potential CO2 separation performance by using a mixed matrix membrane strategy with multiple amine POSS as particles.

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THE EFFECT OF TYPE ZEOLITE ON THE GAS TRANSPORT PROPERTIES OF POLYIMIDE-BASED MIXED MATRIX MEMBRANES

REAKTOR ◽

10.14710/reaktor.12.2.68-77 ◽

2008 ◽

Vol 12 (2) ◽

pp. 68 ◽

Cited By ~ 10

Author(s):

Tutuk Djoko Kusworo ◽

Ahmad Fauzi Ismail ◽

Azeman Mustafa ◽

Kang Li

Keyword(s):

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Separation Performance ◽

Mixed Matrix ◽

Scanning Calorimetry ◽

Zeolite 4A ◽

Intensity Changes ◽

Zeolite Type ◽

Type Zeolite ◽

Matrix Membranes

The permeation rates of O2, N2, CO2 and CH4 has been studied for polyimide-polyethersulfone (PI/PES) blends-zeolite mixed matrix membranes synthesized in our laboratory. The study investigated the effect of zeolite loading and different zeolite type on the gas separation performance of these mixed matrix membranes. Frequency shifts and absorption intensity changes in the FTIR spectra of the PI/PES blends as compared with those of the pure polymers indicate that there is a mixing of polymer blends at the molecular level. Differential scanning calorimetry measurements of pure and PI/PES blends membranes have showed one unique glass transition temperature that supports the miscible character of the PI/PES mixture. The PI/PES-zeolite 4A mixed matrix membrane with 25 wt % zeolite loading produced the highest O2/N2 and CO2/CH4 selectivity of around 7.45 and 46.05, respectively.

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P84/Zeolite-Carbon Composite Mixed Matrix Membrane for CO2/CH4 Separation

Indonesian Journal of Chemistry ◽

10.22146/ijc.35727 ◽

2019 ◽

Vol 19 (3) ◽

pp. 650 ◽

Cited By ~ 1

Author(s):

Triyanda Gunawan ◽

Retno Puji Rahayu ◽

Rika Wijiyanti ◽

Wan Norharyati Wan Salleh ◽

Nurul Widiastuti

Keyword(s):

Carbon Composite ◽

Gas Permeation ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Inversion Method ◽

Mixed Matrix ◽

Force Microscopy ◽

Membrane Performance ◽

Polyimide Membrane ◽

Phase Inversion Method

Mixed Matrix Membranes (MMMs) which consist of 0.3 wt.% Zeolite-Carbon Composite (ZCC) dispersed in BTDA-TDI/MDI (P84 co-polyimide) have been prepared through phase inversion method by using N-methyl-2-pyrrolidone (NMP) as a solvent. Membranes were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Thermogravimetric Analysis (TGA), and Fourier Transform Infrared (FTIR). Membrane performance was measured by a single gas permeation of CO2 and CH4. The maximum permeability of CO2 and CH4, which up to 12.67 and 6.03 Barrer, respectively. P84/ZCC mixed matrix membrane also showed a great enhancement in ideal selectivity of CO2/CH4 2.10 compared to the pure P84 co-polyimide membrane.

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Gas Permeation Properties of Multiwalled Carbon Nanotubes on Polyether Block Amide (Pebax-1657)/Polyethersulfone(PES) Blend Mixed Matrix Membrane for CO2/CH4 Separation

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.307.258 ◽

2020 ◽

Vol 307 ◽

pp. 258-263

Author(s):

Nabilah Fazil ◽

Hilmi Mukhtar ◽

Dzeti Farhah Mohshim ◽

Rizwan Nasir

Keyword(s):

Carbon Nanotubes ◽

Gas Permeability ◽

Gas Permeation ◽

Superior Performance ◽

Polymeric Membrane ◽

Mixed Matrix Membrane ◽

Inversion Method ◽

Separation Performance ◽

Mixed Matrix ◽

Multiwalled Carbon

Mixed matrix membrane (MMM), a developing research area, is a membrane formed by incorporating fillers in the polymeric membrane to enhance gas separation performance. In this study, MMMs comprised of blend rubbery block copolymers of polyether block amide (Pebax-1657) with a glassy polyethersulfone (PES) polymer and multi-walled carbon nanotubes (MWCNTs) were synthesized by dry phase inversion method and explored further by gas permeability test. Pebax-1657/PES/MWCNTs membrane resulted in an increased permeability as well as CO2/CH4 selectivity. The Pebax-1657/PES polymer blend MMM with 10wt% of MWCNTs has shown the most superior performance of CO2 permeability, CH4 permeability and CO2/CH4 selectivity in comparison with the pure Pebax-1657 resulted in 66.3% and 11.6% difference respectively.

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Development of Polysulfone/Activated Carbon Nanofibers Mixed Matrix Membrane for CO2/CH4 Separation

Journal of Applied Membrane Science & Technology ◽

10.11113/amst.v22n1.114 ◽

2018 ◽

Vol 22 (1) ◽

Author(s):

Z. Jamian ◽

M. H. Tajuddin ◽

N. Yusof ◽

F. E. Che Othman

Keyword(s):

Activated Carbon ◽

Carbon Nanofiber ◽

Sem Analysis ◽

Mixed Matrix Membranes ◽

Mixed Matrix Membrane ◽

Separation Performance ◽

Mixed Matrix ◽

Weight Percentage ◽

Ft Ir ◽

Matrix Membranes

This study was performed primarily to investigate the effect of activated carbon nanofiber (ACNF) on carbon dioxide and methane separation performance of mixed matrix membrane (MMM). In this study, polysulfone (PSf)/ACNF mixed matrix membranes was fabricated using dry/wet inversion technique. The effect of PSf concentration and ACNF loading on the performance of mixed matrix membrane in terms of permeability and selectivity of CO2/CH4 gas separation was observed. The fabricated flat sheet mixed matrix membranes were characterized using Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM) analysis. From the SEM observations, it shows that sponge like structures images were observed upon the addition of ACNFs in the PSf/ACNF membranes was slowly decreased due to increasing weight percentage of ACNF. FT-IR result indicating the presence of carboxyl group in MMM at wavelength 1750 cm-1. Meanwhile, the MMMs were further tested to pure permeation test using pure CO2 and CH4 gas, the CO2 permeance improved and the selectivity of CO2/CH4 increased after the addition of ACNFs.

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