Fabrication of ZIFs based mixed matrix membranes and mass transfer properties of C 4 H 6 and N 2 in membrane separation

AIChE Journal ◽  
2020 ◽  
Author(s):  
Ihtisham Ul Haq ◽  
Tao Wang ◽  
Ao‐Shuai Zhang ◽  
Heng Mao ◽  
Rehan Khan ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Membrane Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Transfer Properties ◽  
Matrix Membranes

Construction of molecule-selective mixed matrix membranes with confined mass transfer structure

2017 ◽  
Vol 25 (11) ◽  
pp. 1563-1580 ◽  
Author(s):  
Weidong Li ◽  
Fusheng Pan ◽  
Yimeng Song ◽  
Meidi Wang ◽  
Hongjian Wang ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Transfer Structure ◽  
Matrix Membranes

scholarly journals Recent advances in synthesis and applications of mixed matrix membranes

2021 ◽  
Vol 1 (1) ◽  
pp. 1-27
Author(s):  
Iman Salahshoori ◽  
Ahmad Seyfaee ◽  
Aziz Babapoor
Keyword(s):  
Solubility Parameters ◽  
Mixed Matrix Membranes ◽  
Primary Concern ◽  
Inorganic Membranes ◽  
Mixed Matrix ◽  
Separation Processes ◽  
Water Separation ◽  
Efficient Operation ◽  
Transfer Properties ◽  
Matrix Membranes

Researchers are currently considering membranes separation processes due to their eco-friendly, process simplicity and high efficiency. Selecting a suitable and efficient operation is the primary concern of researchers in the field of separation industries. In recent decades, polymeric and inorganic membranes in the separation industry have made significant progress. The polymeric and inorganic membranes have been challenged due to their competitiveness in permeability and selectivity factors. A combination of nanoparticle fillers within the polymer matrix is an effective method to increase polymeric and inorganic membranes’ efficiency in separation processes. Mixed matrix membranes (MMMs) have been considered by the separation industry due to high mechanical and physicochemical, and transfer properties.  Moreover, gas separation, oil treatment, heavy metal ions removal, water treatment and oil-water separation are common MMMs applications. Selecting suitable polymer blends and fillers is the key to the MMMs construction. The combination of rubbery and glassy polymers with close solubility parameters increases the MMMs performance. The filler type and synthesis methods also affect the morphological and transfer properties of MMMs significantly. Zeolites, graphene oxide (GO), nanosilica, carbon nanotubes (CNTs), zeolite imidazole frameworks (ZIFs) and metal-organic frameworks (MOFs) are used in the MMMs synthesis as fillers. Finally, solution mixing, polymerization in situ and sol-gel are the primary synthesising MMMs methods.

scholarly journals Recent Progress in Mixed-Matrix Membranes for Hydrogen Separation

Membranes ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 666
Author(s):  
Chong Yang Chuah ◽  
Xu Jiang ◽  
Kunli Goh ◽  
Rong Wang
Keyword(s):  
Recent Progress ◽  
Hydrogen Generation ◽  
Membrane Separation ◽  
Critical Evaluation ◽  
Hydrogen Separation ◽  
Mixed Matrix Membranes ◽  
Filler Materials ◽  
Hydrogen Purification ◽  
Mixed Matrix ◽  
Matrix Membranes

Membrane separation is a compelling technology for hydrogen separation. Among the different types of membranes used to date, the mixed-matrix membranes (MMMs) are one of the most widely used approaches for enhancing separation performances and surpassing the Robeson upper bound limits for polymeric membranes. In this review, we focus on the recent progress in MMMs for hydrogen separation. The discussion first starts with a background introduction of the current hydrogen generation technologies, followed by a comparison between the membrane technology and other hydrogen purification technologies. Thereafter, state-of-the-art MMMs, comprising emerging filler materials that include zeolites, metal-organic frameworks, covalent organic frameworks, and graphene-based materials, are highlighted. The binary filler strategy, which uses two filler materials to create synergistic enhancements in MMMs, is also described. A critical evaluation on the performances of the MMMs is then considered in context, before we conclude with our perspectives on how MMMs for hydrogen separation can advance moving forward.

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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