Enhanced CO2 separation of mixed matrix membranes by functionalized Zr-MOF

被引：0

作者：

Fang L. ^{[1
]}

Zheng W. ^{[1
]}

Ning M. ^{[2
,3
]}

Zhang M. ^{[1
]}

Yang Y. ^{[1
]}

Dai Y. ^{[2
,3
]}

He G. ^{[1
,2
]}

机构：

[1] School of Chemical Engineering at Panjin, Dalian University of Technology, Liaoning, Panjin

[2] Panjin Institute of Industrial Technology, Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Dalian University of Technology, Liaoning, Panjin

[3] School of Petrochemical Engineering, Shenyang University of Technology, Liaoning, Liaoyang

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 09期

关键词：

CO[!sub]2[!/sub] capture; metal organic framework; mixed matrix membranes; Pebax;

D O I：

10.16085/j.issn.1000-6613.2022-0462

中图分类号：

学科分类号：

摘要：

Mixed matrix membranes (MMMs) have promising applications in the field of gas separation, and metal-organic frameworks (MOFs) are often used as fillers to prepare MMMs due to their high porosity and organic linking groups. However, the improvement of gas separation performance of MMMs is limited due to the interfacial compatibility between MOFs and polymers. Herein, a functionalized Zr-MOF (UiO-66-AC) was synthesized to prepare mixed matrix membranes with poly(ether-b-amide) (Pebax). The introduction of groups such as carbonyl and carboxyl groups in the filler provided strong interfacial interactions between MOFs and the polymer matrix. Compared with pristine Pebax membranes, the gas permeability of UiO-66-AC/Pebax MMMs was significantly improved. When the filler content was 6%, the CO2 permeability coefficient of the membrane was 102.4 Barrer, the CO2/N2 and CO2/CH4 selectivities were 90.6 and 26.0, respectively, and the CO2/N2 separation performance exceeded the Robeson upper bond (2008), indicating that the UiO-66-AC/Pebax MMMs had potential for CO2 separation applications. © 2022 Chemical Industry Press. All rights reserved.

引用

页码：4954 / 4962

页数：8

共 42 条

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