Enhanced CO2/CH4 selectivity and mechanical strength of mixed-matrix membrane incorporated with NiDOBDC/GO composite

Li, Wen; Chuah, Chong Yang; Nie, Lina; Bae, Tae‐Hyun

doi:10.1016/j.jiec.2019.02.016

Cited by 42 publications

(30 citation statements)

References 55 publications

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“…Typically, a 20 wt% filler loading is not uncommon for a three-dimensional porous filler in a mixed-matrix membrane [19]. In this work, the 20 wt% loading of HKUST-1 is the optimal amount, as also evidenced by other studies on mixed-matrix membranes [72,73]. Next, the structural morphology of the membranes was examined using FESEM ( Figure 5).…”

Section: Characterizaiton Of Mixed-matrix Membranesmentioning

confidence: 56%

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

et al. 2020

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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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Section: Characterizaiton Of Mixed-matrix Membranesmentioning

confidence: 56%

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

et al. 2020

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“…However, MMMs made with rubbery polymers exhibited a low permeability due to plugging of the outer pore windows of the Mg 2 (dobdc) pores by the rubbery polymer chains, which have high mobility at room temperature (Bae and Long, 2013 ). The MOF-74 loading plays a significant role in permselectivity of the MMMs, especially for the CO 2 /CH 4 system (Bachman and Long, 2016 ; Li W. et al, 2019 ). Tien-Binh et al ( 2016 ) prepared MMMs using PIM-1 and different loading of Mg(MOF-74) and the 20 wt.…”

Section: Mof Based Mmms For Co 2 Separationmentioning

confidence: 99%

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

et al. 2020

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Gas separation and purification using polymeric membranes is a promising technology that constitutes an energy-efficient and eco-friendly process for large scale integration. However, pristine polymeric membranes typically suffer from the trade-off between permeability and selectivity represented by the Robeson's upper bound. Mixed matrix membranes (MMMs) synthesized by the addition of porous nano-fillers into polymer matrices, can enable a simultaneous increase in selectivity and permeability. Among the various porous fillers, metal-organic frameworks (MOFs) are recognized in recent days as a promising filler material for the fabrication of MMMs. In this article, we review representative examples of MMMs prepared by dispersion of MOFs into polymer matrices or by deposition on the surface of polymeric membranes. Addition of MOFs into other continuous phases, such as ionic liquids, are also included. CO 2 separation from hydrocarbons, H 2 , N 2 , and the like is emphasized. Hybrid fillers based on composites of MOFs with other nanomaterials, e.g., of MOF/GO, MOF/CNTs, and functionalized MOFs, are also presented and discussed. Synergetic effects and the result of interactions between filler/matrix and filler/filler are reviewed, and the impact of filler and matrix types and compositions, filler loading, surface area, porosity, pore sizes, and surface functionalities on tuning permeability are discoursed. Finally, selectivity, thermal, chemical, and mechanical stability of the resulting MMMs are analyzed. The review concludes with a perspective of up-scaling of such systems for CO 2 separation, including an overview of the most promising MMM systems.

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“…One barrer was reported for MMM made by UiO-66-NH 2 @ICA (10 wt% loading) and Matrimid 5,218. Li et al 94 prepared MMMs using NiDOBDC, GO, and NiDOBDC-GO composites along with Matrimid, they reported an overall increase in 102 produced novel MMMs using ZIF-8 particles grown on graphene oxide sheets (ZIF-8@GO), they prepared these MMMs using Pebax with a variable MOF loading of 2, 4, 6, and 8 wt%. to study their CO 2 /N 2 separation performance.…”

Section: Mof-mmms For Co 2 /Ch 4 Separationmentioning

confidence: 99%

Metal–organic framework‐based mixed‐matrixmembranes for gas separation: An overview

Winarta

Meshram

Zhu

et al. 2020

Journal of Polymer Science

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Mixed‐matrix membranes (MMMs) have been studied widely in the field of gas separation due to their potential to overcome performance barriers found in traditional polymeric membranes. Most polymeric membranes exhibit a trade‐off between permeation and selectivity, which has limited their development in many challenging separation applications. One solution to this issue utilizes the introduction of fillers into the polymer matrix to produce MMMs. Out of the many different fillers, metal–organic frameworks stand out as a promising candidate due to their highly tunable structure, molecular sieving effect, and superior compatibility with the polymer matrix. This review will provide an in‐depth look into the basic mechanisms of MMMs for gas separation and different approaches to model the permeation of gases through the membrane. In addition, challenges facing the field and recent research trends for MMMs will be discussed as well as their many applications for different gas separations. Finally, some insight on the future direction for MMMs will be covered, focusing on many intriguing opportunities and challenges that must be further explored to advance this technology.

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Enhanced CO2/CH4 selectivity and mechanical strength of mixed-matrix membrane incorporated with NiDOBDC/GO composite

Cited by 42 publications

References 55 publications

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

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

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

Metal–organic framework‐based mixed‐matrixmembranes for gas separation: An overview

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