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.

scholarly journals Tailoring molecular interactions between microporous polymers in high performance mixed matrix membranes for gas separations

Nanoscale ◽  
2020 ◽  
Vol 12 (33) ◽  
pp. 17405-17410 ◽  
Author(s):  
Cher Hon Lau ◽  
Kristina Konstas ◽  
Cara M. Doherty ◽  
Stefan J. D. Smith ◽  
Rujing Hou ◽  
...  
Keyword(s):  
Molecular Interactions ◽  
High Performance ◽  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Energy Costs ◽  
Mixed Matrix ◽  
Microporous Polymers ◽  
Chemical Separations ◽  
Matrix Membranes

Membranes are crucial to lowering the huge energy costs of chemical separations.

scholarly journals Highly permeable and selective mixed-matrix membranes for hydrogen separation containing PAF-1

2020 ◽  
Vol 8 (29) ◽  
pp. 14713-14720 ◽  
Author(s):  
Rujing Hou ◽  
Bader S. Ghanem ◽  
Stefan J. D. Smith ◽  
Cara M. Doherty ◽  
Caitlin Setter ◽  
...  
Keyword(s):  
Polymer Chain ◽  
Hydrogen Permeability ◽  
Hydrogen Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

Porous PAF-1 addition accelerated TPIM-2 polymer chain densification and resulted in both improved hydrogen permeability and selectivity.

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
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