A new permeation model in porous filler–based mixed matrix membranes for CO 2 separation

2019 ◽  
Vol 9 (4) ◽  
pp. 719-742 ◽  
Author(s):  
Mohammad Mehdi Moftakhari Sharifzadeh ◽  
Mona Zamani Pedram ◽  
Abtin Ebadi Amooghin
Keyword(s):  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Porous Filler ◽  
Matrix Membranes

scholarly journals Investigation of Azo-cop-2 as a Photo-responsive Low-energy Co2 Adsorbent and Porous Filler in Mixed Matrix Membranes for Co2/N2 Separation

2019 ◽  
Author(s):  
Siyao Li ◽  
Nicholaus Prasetya ◽  
Bradley Ladewig
Keyword(s):  
Uv Light ◽  
Low Energy ◽  
Polymeric Membrane ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Porous Filler ◽  
Excellent Candidate ◽  
Co2 Adsorbent ◽  
Matrix Membranes

<b>Abstract</b><div>As a nanoporous polymer, Azo-COP-2 has been reported for having exceptional CO<sub>2</sub>/N<sub>2</sub> separation performance. In this study, we further investigate the application of Azo-COP-2 as a potential for low-energy CO<sub>2</sub> adsorbent and porous filler in mixed matrix membranes for CO<sub>2</sub>/N<sub>2</sub> separation. As an adsorbent, thanks to the presence of azobenzene in its framework, Azo-COP-2 showed lower CO<sub>2</sub> uptake when irradiated with UV light than its normal condition. Azo-COP-2 also exhibited a highly efficient CO<sub>2</sub> photoswitching between its irradiated and non-irradiated state that has not been observed previously in any nanoporous polymer. Combined with high CO<sub>2</sub>/N<sub>2</sub> selectivity, this property renders Azo-COP-2 to be an excellent candidate for low-energy CO<sub>2</sub> capture. A beneficial property was also exhibited by Azo-COP-2 once they were used as porous filler in mixed-matrix membranes (MMMs) using three different polymer matrices: Matrimid, polysulfone and PIM-1. Both permeability and selectivity of the MMMs could be simultaneously improved once ideal interaction between Azo-COP-2 and the polymer could be established. It was found that Azo-COP-2 – polysulfone composites had the best performance. In this case, it was observed that the CO<sub>2</sub> permeability and CO2/N2 selectivity could be increased up to 160% and 66.7%, respectively. The strategy then shows the great potential of Azo-COP-2 not only for an advanced low-energy CO<sub>2</sub> adsorbent but also to improve the performance of conventional polymeric membrane for CO<sub>2</sub> post-combustion capture.<br></div>

scholarly journals Investigation of Azo-cop-2 as a Photo-responsive Low-energy Co2 Adsorbent and Porous Filler in Mixed Matrix Membranes for Co2/N2 Separation

2019 ◽  
Author(s):  
Siyao Li ◽  
Nicholaus Prasetya ◽  
Bradley Ladewig
Keyword(s):  
Uv Light ◽  
Low Energy ◽  
Polymeric Membrane ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Porous Filler ◽  
Excellent Candidate ◽  
Co2 Adsorbent ◽  
Matrix Membranes

<b>Abstract</b><div>As a nanoporous polymer, Azo-COP-2 has been reported for having exceptional CO<sub>2</sub>/N<sub>2</sub> separation performance. In this study, we further investigate the application of Azo-COP-2 as a potential for low-energy CO<sub>2</sub> adsorbent and porous filler in mixed matrix membranes for CO<sub>2</sub>/N<sub>2</sub> separation. As an adsorbent, thanks to the presence of azobenzene in its framework, Azo-COP-2 showed lower CO<sub>2</sub> uptake when irradiated with UV light than its normal condition. Azo-COP-2 also exhibited a highly efficient CO<sub>2</sub> photoswitching between its irradiated and non-irradiated state that has not been observed previously in any nanoporous polymer. Combined with high CO<sub>2</sub>/N<sub>2</sub> selectivity, this property renders Azo-COP-2 to be an excellent candidate for low-energy CO<sub>2</sub> capture. A beneficial property was also exhibited by Azo-COP-2 once they were used as porous filler in mixed-matrix membranes (MMMs) using three different polymer matrices: Matrimid, polysulfone and PIM-1. Both permeability and selectivity of the MMMs could be simultaneously improved once ideal interaction between Azo-COP-2 and the polymer could be established. It was found that Azo-COP-2 – polysulfone composites had the best performance. In this case, it was observed that the CO<sub>2</sub> permeability and CO2/N2 selectivity could be increased up to 160% and 66.7%, respectively. The strategy then shows the great potential of Azo-COP-2 not only for an advanced low-energy CO<sub>2</sub> adsorbent but also to improve the performance of conventional polymeric membrane for CO<sub>2</sub> post-combustion capture.<br></div>

scholarly journals Investigation of Azo-cop-2 as a Photo-responsive Low-energy Co2 Adsorbent and Porous Filler in Mixed Matrix Membranes for Co2/N2 Separation

2019 ◽  
Author(s):  
Siyao Li ◽  
Nicholaus Prasetya ◽  
Bradley Ladewig
Keyword(s):  
Uv Light ◽  
Low Energy ◽  
Polymeric Membrane ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Porous Filler ◽  
Excellent Candidate ◽  
Co2 Adsorbent ◽  
Matrix Membranes

<b>Abstract</b><div>As a nanoporous polymer, Azo-COP-2 has been reported for having exceptional CO<sub>2</sub>/N<sub>2</sub> separation performance. In this study, we further investigate the application of Azo-COP-2 as a potential for low-energy CO<sub>2</sub> adsorbent and porous filler in mixed matrix membranes for CO<sub>2</sub>/N<sub>2</sub> separation. As an adsorbent, thanks to the presence of azobenzene in its framework, Azo-COP-2 showed lower CO<sub>2</sub> uptake when irradiated with UV light than its normal condition. Azo-COP-2 also exhibited a highly efficient CO<sub>2</sub> photoswitching between its irradiated and non-irradiated state that has not been observed previously in any nanoporous polymer. Combined with high CO<sub>2</sub>/N<sub>2</sub> selectivity, this property renders Azo-COP-2 to be an excellent candidate for low-energy CO<sub>2</sub> capture. A beneficial property was also exhibited by Azo-COP-2 once they were used as porous filler in mixed-matrix membranes (MMMs) using three different polymer matrices: Matrimid, polysulfone and PIM-1. Both permeability and selectivity of the MMMs could be simultaneously improved once ideal interaction between Azo-COP-2 and the polymer could be established. It was found that Azo-COP-2 – polysulfone composites had the best performance. In this case, it was observed that the CO<sub>2</sub> permeability and CO2/N2 selectivity could be increased up to 160% and 66.7%, respectively. The strategy then shows the great potential of Azo-COP-2 not only for an advanced low-energy CO<sub>2</sub> adsorbent but also to improve the performance of conventional polymeric membrane for CO<sub>2</sub> post-combustion capture.<br></div>

Long-Term Stable Metal Organic Framework (MOF) Based Mixed Matrix Membranes for Ultrafiltration

2020 ◽  
Author(s):  
Muayad Al-shaeli ◽  
Stefan J. D. Smith ◽  
Shanxue Jiang ◽  
Huanting Wang ◽  
Kaisong Zhang ◽  
...  
Keyword(s):  
Contact Angle ◽  
Water Contact Angle ◽  
Mixed Matrix Membranes ◽  
Recovery Ratio ◽  
Mixed Matrix ◽  
Water Contact ◽  
Membrane Performance ◽  
Metal Organic ◽  
Matrix Membranes

<p>In this study, novel <a>mixed matrix polyethersulfone (PES) membranes</a> were synthesized by using two different kinds of metal organic frameworks (MOFs), namely UiO-66 and UiO-66-NH<sub>2</sub>. The composite membranes were characterised by SEM, EDX, FTIR, PXRD, water contact angle, porosity, pore size, etc. Membrane performance was investigated by water permeation flux, flux recovery ratio, fouling resistance and anti-fouling performance. The stability test was also conducted for the prepared mixed matrix membranes. A higher reduction in the water contact angle was observed after adding both MOFs to the PES and sulfonated PES membranes compared to pristine PES membranes. An enhancement in membrane performance was observed by embedding the MOF into PES membrane matrix, which may be attributed to the super-hydrophilic porous structure of UiO-66-NH<sub>2</sub> nanoparticles and hydrophilic structure of UiO-66 nanoparticles that could accelerate the exchange rate between solvent and non-solvent during the phase inversion process. By adding the MOFs into PES matrix, the flux recovery ratio was increased greatly (more than 99% for most mixed matrix membranes). The mixed matrix membranes showed higher resistance to protein adsorption compared to pristine PES membranes. After immersing the membranes in water for 3 months, 6 months and 12 months, both MOFs were stable and retained their structure. This study indicates that UiO-66 and UiO-66-NH<sub>2</sub> are great candidates for designing long-term stable mixed matrix membranes with higher anti-fouling performance.</p>

Porous covalent triazine piperazine polymer (CTPP)/PEBAX mixed matrix membranes for CO2/N2 and CO2/CH4 separations

2019 ◽  
Vol 591 ◽  
pp. 117348 ◽  
Author(s):  
Roshni L. Thankamony ◽  
Xiang Li ◽  
Swapan K. Das ◽  
Mayur M. Ostwal ◽  
Zhiping Lai
Keyword(s):  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

Mixed matrix membranes with molecular-interaction-driven tunable free volumes for efficient bio-fuel recovery

2015 ◽  
Vol 3 (8) ◽  
pp. 4510-4521 ◽  
Author(s):  
Gongping Liu ◽  
Wei-Song Hung ◽  
Jie Shen ◽  
Qianqian Li ◽  
Yun-Hsuan Huang ◽  
...  
Keyword(s):  
Polymer Chain ◽  
Molecular Interactions ◽  
Molecular Interaction ◽  
Chain Conformation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Polymer Chain Conformation ◽  
Matrix Membranes

Molecular interactions were constructed to control polymer chain conformation to fabricate mixed matrix membranes with tunable free volumes, exhibiting simultaneously improved butanol permeability and selectivity.

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