膜科学与技术

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Preparation and CO2 separation performance of EM400/modified MIL-101(Cr) mixed matrix membranes

Authors： CHEN Shuhui, ZHAO Dan, REN Jizhong, GAO Jifa

Units： 1. National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023，China; 2. University of Chinese Academy of Sciences, Beijing 100049, China; 3. Dalian Jiaotong University, Dalian 116028, China

KeyWords： Mixed matrix membrane; CO2 separation; Membrane separation; MOF; MIL-101;

ClassificationCode：

year,volume(issue):pagination： 2023,43(1):65-73

Abstract：

Facing the situation of the greenhouse effect and climate change, membrane technology is of great significance for CO2 separation and capture to reduce CO2 emissions. To break the “Trade-off” between permeability and selectivity of polymers, the EM400/MIL-101(Cr) mixed matrix membranes (MMMs) were prepared by using EM400 (polyether-ester) as matrix and porous metal-organic framework (MOF), MIL-101(Cr), as filler. And then, the MIL-101(Cr) was modified by -NH2, -NO2 and -OH to study their CO2 separation performance. The results showed that the addition of MIL-101(Cr) can effectively improve the diffusion coefficient and dissolution coefficient of EM400/MIL-101(Cr) MMMs, resulting in an enhanced CO2 permeability with little change of selectivity. Among these EM400/modified MIL-101(Cr) MMMs, the EM400/MIL-101(Cr)-OH MMMs had the highest CO2 permeability, and the EM400/MIL-101-NH2 MMMs showed better gases selectivity.

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AuthorIntro：

陈淑慧（1996-），女，福建南靖人，博士生，主要从事膜分离研究，E-mail：chensh@dicp.ac.cn.

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