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

2016 ◽  
Vol 36 (1) ◽  
pp. 65-78 ◽  
Author(s):  
N.M. Ismail ◽  
A.F. Ismail ◽  
A. Mustafa ◽  
A.K. Zulhairun ◽  
N.A.H.M. Nordin
Keyword(s):  
Mixed Matrix Membranes ◽  
X Ray Diffraction ◽  
Mixed Matrix ◽  
Scanning Calorimetry ◽  
Carbon Dioxide Separation ◽  
Clay Particles ◽  
Amorphous Nature ◽  
Overall Performance ◽  
Silicate Layers ◽  
Matrix Membranes

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.

Synthesis and Characterization of ZIF-8 Mixed Matrix Membranes

2014 ◽  
Vol 625 ◽  
pp. 661-664
Author(s):  
Chen Chuang Lok ◽  
Yin Fong Yeong
Keyword(s):  
Room Temperature ◽  
Synthesis Method ◽  
Mixed Matrix Membranes ◽  
Inorganic Filler ◽  
X Ray Diffraction ◽  
Mixed Matrix ◽  
Temperature Synthesis ◽  
X Ray ◽  
Matrix Membranes

In the present work, ZIF-8/6FDA-durene mixed matrix membranes (MMMs) were synthesized and characterized. ZIF-8 nanocrystals, which were used as the inorganic filler, were synthesized using rapid room-temperature synthesis method whereas 6FDA-durene polyimide was synthesized by polycondensation method followed by chemical imidization. Pure and 6FDA-durene membranes loaded with 5 wt%, 10 wt% and 15 wt% of ZIF-8 were fabricated. The structural properties and morphology of the resultant membranes were characterized by using X-ray Diffraction (XRD) and Field emission scanning electron microscope (FESEM) . The EDX images showed that ZIF-8 particles agglomerated in the polymer matrix. However, no phase separation was observed for all resultant MMMs.

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

REAKTOR ◽  
2008 ◽  
Vol 12 (2) ◽  
pp. 68 ◽  
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.

scholarly journals Mixed-matrix membranes with enhanced antifouling activity: probing the surface-tailoring potential of Tiron and chromotropic acid for nano-TiO 2

2017 ◽  
Vol 4 (9) ◽  
pp. 170368 ◽  
Author(s):  
Avishek Pal ◽  
T. K. Dey ◽  
A. K. Debnath ◽  
Bharat Bhushan ◽  
A. K. Sahu ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Structural Features ◽  
Chromotropic Acid ◽  
Mixed Matrix Membranes ◽  
Transmembrane Pressure ◽  
X Ray Diffraction ◽  
Mixed Matrix ◽  
Antifouling Activity ◽  
X Ray ◽  
Matrix Membranes

Mixed-matrix membranes (MMMs) were developed by impregnating organofunctionalized nanoadditives within fouling-susceptible polysulfone matrix following the non-solvent induced phase separation (NIPS) method. The facile functionalization of nanoparticles of anatase TiO 2 (nano-TiO 2 ) by using two different organoligands, viz . Tiron and chromotropic acid, was carried out to obtain organofunctionalized nanoadditives, F T -nano-TiO 2 and F C -nano-TiO 2 , respectively. The structural features of nanoadditives were evaluated by X-ray diffraction, X-ray photoelectron spectroscopy, Raman and Fourier transform infrared spectroscopy, which established that Tiron leads to the blending of chelating and bridging bidentate geometries for F T -nano-TiO 2 , whereas chromotropic acid produces bridging bidentate as well as monodentate geometries for F C -nano-TiO 2 . The surface chemistry of the studied membranes, polysulfone (Psf): F T -nano-TiO 2 UF and Psf: F C -nano-TiO 2 UF, was profoundly influenced by the benign distributions of the nanoadditives enriched with distinctly charged sites ( − SO 3 − H + ), as evidenced by superior morphology, improved topography, enhanced surface hydrophilicity and altered electrokinetic features. The membranes exhibited enhanced solvent throughputs, viz . 3500–4000 and 3400–4300 LMD at 1 bar of transmembrane pressure, without significant compromise in their rejection attributes. The flux recovery ratios and fouling resistive behaviours of MMMs towards bovine serum albumin indicated that the nanoadditives could impart stable and appreciable antifouling activity, potentially aiding in a sustainable ultrafiltration performance.

Synergistic solution of CO2 capture by novel lanthanide-based MOF-76 yttrium nanocrystals in mixed-matrix membranes

2019 ◽  
Vol 31 (4) ◽  
pp. 692-712 ◽  
Author(s):  
Sadia Bano ◽  
Saadia R Tariq ◽  
Ayesha Ilyas ◽  
Muhammad Aslam ◽  
Muhammad R Bilad ◽  
...  
Keyword(s):  
Elevated Temperatures ◽  
Metal Organic Framework ◽  
Gas Permeation ◽  
Mixed Matrix Membranes ◽  
X Ray Diffraction ◽  
Mixed Matrix ◽  
The Family ◽  
Metal Organic ◽  
The Ideal ◽  
Matrix Membranes

A porous and thermally stable metal organic framework (MOF) of yttrium and 1,3,5-benzenetricarboxylate was synthesized, which belongs to the family of lanthanide-based MOF-76. Mixed-matrix membranes were developed by incorporating MOF-76 yttrium nanocrystals into Matrimid® 5218. The structure, composition, and morphology of synthesized lanthanide-based MOF-76 yttrium nanocrystals and mixed-matrix membranes were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The characterizations and gas permeation results of the prepared mixed-matrix membranes confirmed better adhesion and distribution of filler particles in the polymer. The results demonstrated that the addition of MOF-76 yttrium nanocrystals to the polymer matrix improved both the gas selectivity and permeability of mixed-matrix membranes compared to pure Matrimid membranes. Permeability of CO2 increased from 7.24 to 27.29 Barrer by increasing the particle content from 0 to 30% in pure gas experiments. Whereas with 30 wt% concentration of MOF-76(Y) at 50:50 feed compositions, the selectivity increased for CO2/CH4 and CO2/N2 was 67% and 68%, respectively. The rise in temperature from 298 to 338 K decreased the ideal selectivity up to 25% for both gas pairs due to polymer chain relaxations at elevated temperatures. The commercial importance of membranes was evaluated at different feed compositions and operating temperatures.

scholarly journals Metal Organic Framework — Based Mixed Matrix Membranes for Carbon Dioxide Separation: Recent Advances and Future Directions

2020 ◽  
Vol 8 ◽  
Author(s):  
Vengatesan Muthukumaraswamy Rangaraj ◽  
Mohammad A. Wahab ◽  
K. Suresh Kumar Reddy ◽  
George Kakosimos ◽  
Omnya Abdalla ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Future Directions ◽  
Carbon Dioxide Separation ◽  
Recent Advances ◽  
Metal Organic ◽  
Organic Framework ◽  
Matrix Membranes

scholarly journals Glassy PEEK-WC vs. Rubbery Pebax®1657 Polymers: Effect on the Gas Transport in CuNi-MOF Based Mixed Matrix Membranes

2020 ◽  
Vol 10 (4) ◽  
pp. 1310 ◽  
Author(s):  
Elisa Esposito ◽  
Rosaria Bruno ◽  
Marcello Monteleone ◽  
Alessio Fuoco ◽  
Jesús Ferrando Soria ◽  
...  
Keyword(s):  
Gas Transport ◽  
Effective Diffusivity ◽  
Polymeric Membranes ◽  
Mixed Matrix Membranes ◽  
Mechanical And Thermal Properties ◽  
Mixed Matrix ◽  
Mixed Gas ◽  
Scanning Calorimetry ◽  
The Ideal ◽  
Matrix Membranes

Mixed matrix membranes (MMMs) are seen as promising candidates to overcome the fundamental limit of polymeric membranes, known as the so-called Robeson upper bound, which defines the best compromise between permeability and selectivity of neat polymeric membranes. To overcome this limit, the permeability of the filler particles in the MMM must be carefully matched with that of the polymer matrix. The present work shows that it is not sufficient to match only the permeability of the polymer and the dispersed phase, but that one should consider also the individual contributions of the diffusivity and the solubility of the gas in both components. Here we compare the gas transport performance of two different MMMs, containing the metal–organic framework CuNi-MOF in the rubbery Pebax®1657 and in the glassy poly(ether-ether-ketone) with cardo moiety, PEEK-WC. The chemical and structural properties of MMMs were investigated by means of FT-IR spectroscopy, scanning electron microscopy and EDX analysis. The influence of MOF on the mechanical and thermal properties of both polymers was investigated by tensile tests and differential scanning calorimetry, respectively. The MOF loading in Pebax®1657 increased the ideal H2/N2 selectivity from 6 to 8 thanks to an increased H2 permeability. In general, the MOF had little effect on the Pebax®165 membranes because an increase in gas solubility was neutralized by an equivalent decrease in effective diffusivity. Instead, the addition of MOF to PEEK-WC increases the ideal CO2/CH4 selectivity from 30 to ~48 thanks to an increased CO2 permeability (from 6 to 48 Barrer). The increase in CO2 permeability and CO2/CH4 selectivity is maintained under mixed gas conditions.

Amino-silane-grafted NH2-MIL-53(Al)/polyethersulfone mixed matrix membranes for CO2/CH4 separation

2019 ◽  
Vol 48 (36) ◽  
pp. 13555-13566 ◽  
Author(s):  
Farhad Ahmadijokani ◽  
Salman Ahmadipouya ◽  
Hossein Molavi ◽  
Mohammad Arjmand
Keyword(s):  
Carbon Dioxide ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Carbon Dioxide Separation ◽  
Amino Silane ◽  
Matrix Membranes

Mixed-matrix membranes (MMMs) are promising candidates for carbon dioxide separation.

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