A Highly Permeable Aligned Montmorillonite Mixed-Matrix Membrane for CO2 Separation

Zhihua Qiao; Song Zhao; Jixiao Wang; Shichang Wang; Zhi Wang; Michael D Guiver

doi:10.1002/anie.201603211

A Highly Permeable Aligned Montmorillonite Mixed-Matrix Membrane for CO2 Separation

Angew Chem Int Ed Engl. 2016 Aug 1;55(32):9321-5. doi: 10.1002/anie.201603211. Epub 2016 Jun 17.

Authors

Zhihua Qiao^{1

2

3}, Song Zhao^{1

2

3}, Jixiao Wang^{1

2

3}, Shichang Wang^{1

2

3}, Zhi Wang^{4

5

6}, Michael D Guiver^{7

8}

Affiliations

¹ Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P.R. China.
² Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 300072, P.R. China.
³ Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P.R. China.
⁴ Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P.R. China. wangzhi@tju.edu.cn.
⁵ Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 300072, P.R. China. wangzhi@tju.edu.cn.
⁶ Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P.R. China. wangzhi@tju.edu.cn.
⁷ State Key Laboratory of Engines, Tianjin University, Tianjin, 300072, P.R. China. guiver@tju.edu.cn.
⁸ Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P.R. China. guiver@tju.edu.cn.

PMID: 27312314
DOI: 10.1002/anie.201603211

Abstract

Highly permeable montmorillonite layers bonded and aligned with the chain stretching orientation of polyvinylamineacid are immobilized onto a porous polysulfone substrate to fabricate aligned montmorillonite/polysulfone mixed-matrix membranes for CO2 separation. High-speed gas-transport channels are formed by the aligned interlayer gaps of the modified montmorillonite, through which CO2 transport primarily occurs. High CO2 permeance of about 800 GPU is achieved combined with a high mixed-gas selectivity for CO2 that is stable over a period of 600 h and independent of the water content in the feed.

Keywords: carbon dioxide; gas separation; membranes; montmorillonite.

Publication types

Research Support, Non-U.S. Gov't