Enhancing the CO2 plasticization resistance of PS mixed-matrix membrane by blunt zeolitic imidazolate framework

Zhuang, Guo-Liang; Tseng, Hui‐Hsin; Uchytil, Petr; Wey, Ming‐Yen

doi:10.1016/j.jcou.2018.03.009

Cited by 18 publications

(9 citation statements)

References 71 publications

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“…ZIFs show superior thermal and chemical stability, and are inherently more compatible with polymer matrix [109]. Some studies have found that the introduction of ZIF-8 (Zn (2-methylimidazole) 2 ) can improve the anti-plasticization performance of pure polymer membranes [74,75].…”

Section: Mixed Matrix Membranes (Mmms)mentioning

confidence: 99%

“…Instead of a sharp ZIF-8 crystal, blending 10 wt% blunt ZIF-8 in the waste polystyrene (w-PS) container-derived membrane matrix showed good aging resistance and improved anti-plasticization gas separation performance [75]. CO 2 permeability of pure PS membranes increased as CO 2 pressure increased to 3 bar (i.e., 2.96 atm).…”

Section: Mixed Matrix Membranes (Mmms)mentioning

confidence: 99%

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Approaches to Suppress CO2-Induced Plasticization of Polyimide Membranes in Gas Separation Applications

et al. 2019

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Polyimides with excellent physicochemical properties have aroused a great deal of interest as gas separation membranes; however, the severe performance decay due to CO2-induced plasticization remains a challenge. Fortunately, in recent years, advanced plasticization-resistant membranes of great commercial and environmental relevance have been developed. In this review, we investigate the mechanism of plasticization due to CO2 permeation, introduce effective methods to suppress CO2-induced plasticization, propose evaluation criteria to assess the reduced plasticization performance, and clarify typical methods used for designing anti-plasticization membranes.

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Section: Mixed Matrix Membranes (Mmms)mentioning

confidence: 99%

Section: Mixed Matrix Membranes (Mmms)mentioning

confidence: 99%

Approaches to Suppress CO2-Induced Plasticization of Polyimide Membranes in Gas Separation Applications

et al. 2019

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“…Figure illustrates the CO 2 plasticization behavior of neat CA-HFM and combined post-treated HFMMM. Referring to Figure , as the CO 2 feed pressure increases up to 10 bar, dual-sorption properties in neat CA-HFM are observed, which reduced the CO 2 solutibility coefficient and thus decreased the CO 2 permeance . Subsequently, when CO 2 pressure was further enhanced from 10 to 14 bar, CO 2 permeance of neat CA-HFM increased from 3.58 to 4.21 GPU.…”

Section: Resultsmentioning

confidence: 91%

“…Single gas permeation and mixed gas 8, as the CO 2 feed pressure increases up to 10 bar, dual-sorption properties in neat CA-HFM are observed, which reduced the CO 2 solutibility coefficient and thus decreased the CO 2 permeance. 55 Subsequently, when CO 2 pressure was further enhanced from 10 to 14 bar, CO 2 permeance of neat CA-HFM increased from 3.58 to 4.21 GPU. This result is mainly because of increment in mobility of polymer chain and swelling which enhanced the CO 2 diffusion rate.…”

Section: Field Emission Scanning Electron Microscope (Fesem)mentioning

confidence: 97%

Comparison of Post-Treatment Methods on the Performance of Hollow Fiber Membranes Containing Metal Organic Framework in Gases Separation

Mubashir

Yeong

Chew

et al. 2019

Ind. Eng. Chem. Res.

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In the current work, thermal treatment, PDMS coating, and combined thermal treatment with PDMS coating methods were applied over NH2-MIL-53(Al)/cellulose acetate (CA) hollow fiber mixed matrix membranes (HFMMM) for CO2/CH4 and CO2/N2 separation. The results showed that upon thermal treatment at 170 °C, CO2/CH4 and CO2/N2 gas pair selectivities of HFMMM were improved from 9.1 to 9.9 and 7.7 to 8.4, respectively. On the other hand, CO2/CH4 and CO2/N2 gas pair selectivities of HFMMMs were improved from 9.1 to 14.1 and 7.7 to 12.0, respectively, after thermal treatment at 220 °C. Substantial increment in gas pair selectivities of the thermally treated fibers was mainly due to polymer densification, which condensed the voids between polymer and particles. Subsequently, PDMS-coated HFMMMs exhibited gas pair selectivities of 17.0 and 16.2, respectively, which were higher compared to the untreated and thermally treated HFMMM. Highest improvement of CO2/CH4 and CO2/N2 gas pair selectivities were found for combined post-treated HFMMM with selectivities values of 26.6 and 24.9, respectively. This result was due to the combined effect of polymer densification and penetration of PDMS solution in the CA matrix which contributed to the suppression of nonselective voids. Hence, this work suggests that combined thermal treatment with PDMS coating method could be feasible and efficient for the improvement of performance of HFMMMs in gases separation.

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“…Pressure difference affects the solution diffusion mechanism and SLM solubility coefficient which subsequently affects the morphology and permeation performance of membranes (62). Bin (29)…”

Section: Pressure Differencementioning

confidence: 99%

Recent Advances and Challenges of Deep Eutectic Solvent based Supported Liquid Membranes

Mubashir

d’Angelo

Gallucci

2021

Separation & Purification Reviews

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In the past few years, research on the fabrication of deep eutectic solvents (DESs)-based supported liquid membranes (SLMs) is increasing tremendously due to their significant advantages such as low mass transport resistance, high performance, easy scale-up, low cost and simple operation. However, fabrication of DES-based SLMs is challenging and highly dependent on the fabrication parameters: DES properties and properties of membrane supports. Subsequently, the fabrication methods, immersion, pressurebased impregnation and vacuum filtration also affect the permeation performance of DES-based SLMs in liquids and gases separation. Furthermore, the SLM durability is influenced by the DES properties and process parameters including: temperature, pressure, and feed composition. Firstly, present work reviews the current progress and fabrication of DES-based SLMs. Subsequently, it presents a perspective on different strategies that use DESs as a unique tunable platform to design advanced SLMs for liquids and gases separation reported in the literature. In the next step, performances of the SLMs membranes for liquids and gases separation are described in details. The effects of process parameters on DES-based SLMs are also highlighted prior to the challenges. Lastly, challenges and future research opportunities are highlighted.

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Enhancing the CO2 plasticization resistance of PS mixed-matrix membrane by blunt zeolitic imidazolate framework

Cited by 18 publications

References 71 publications

Approaches to Suppress CO2-Induced Plasticization of Polyimide Membranes in Gas Separation Applications

Approaches to Suppress CO2-Induced Plasticization of Polyimide Membranes in Gas Separation Applications

Comparison of Post-Treatment Methods on the Performance of Hollow Fiber Membranes Containing Metal Organic Framework in Gases Separation

Recent Advances and Challenges of Deep Eutectic Solvent based Supported Liquid Membranes

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