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- W3211345265 abstract "Abstract In this work, we systematically investigate and analyze the transport properties including carbon dioxide and methane gases, as well as carbon dioxide induced‐plasticization behavior over 6FDA‐based mixed matrix filled with nonfunctionalized and amine‐functionalized MIL‐125 (Ti) particles. First, the sorption behavior and permeability of CO 2 and CH 4 gases across the membranes were evaluated experimentally. Then, the dual‐mode sorption model was used to determine the gas solubility coefficients of gases, whereas the partial immobilization model was used to quantify the diffusivity coefficients of gases. From the results obtained, the permeability of CO 2 and the ideal selectivity of CO 2 /CH 4 increased 86%–118% upon the addition of nonfunctionalized and amine‐functionalized MIL‐125 (Ti) fillers into 6FDA/durene polymer. Such increment was mainly attributed to the altered sorption and diffusion properties of the membrane after incorporating the fillers that promoted the transport of CO 2 through the membrane. The coefficients of Langmuir sorption capacity ( C ′ H ), Henry's law ( K D ), and affinity constant ( b ) obtained for NH 2 ‐MIL‐125 (Ti)/6FDA‐durene increased 35.5%, 179.8%, and 104.4%, respectively, compared to pure 6FDA‐durene membrane. Besides, NH 2 ‐MIL‐125 (Ti)/6FDA‐durene mixed matrix membrane showed the highest diffusivity coefficient of 35.1 × 10 −8 cm 2 /s, resulting in higher CO 2 /CH 4 selectivity of 37.1. In addition, the CO 2 plasticization resistance obtained for nonfunctionalized and amine‐functionalized mixed matrix membrane was also improved about 150%–200% compared to pure 6FDA‐durene membrane. Overall, this study revealed that the inclusion of fillers into the polymer matrix has resulted in higher membrane performance than the neat membrane, which associated with the increased of both diffusivity and solubility of CO 2 . Thus, the incorporation of fillers into polymer matrix has altered the gas transport behavior, and this study could provide basic information on gas transport properties in analyzing the gas separation performance of 6FDA‐based mixed matrix membranes." @default.
- W3211345265 created "2021-11-22" @default.
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- W3211345265 date "2021-11-09" @default.
- W3211345265 modified "2023-09-30" @default.
- W3211345265 title "Altering sorption and diffusion coefficients of gases in<scp>6FDA</scp>‐based membrane via addition of functionalized<scp>Ti</scp>‐based fillers" @default.
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- W3211345265 doi "https://doi.org/10.1002/pc.26389" @default.
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