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Preparation and characterization of CO 2 ‐selective Pebax/NaY mixed matrix membranes
Author(s) -
Zheng Yingfei,
Wu Yonghong,
Zhang Bing,
Wang Zhi
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48398
Subject(s) - thermogravimetric analysis , barrer , membrane , materials science , permeation , thermal stability , fourier transform infrared spectroscopy , chemical engineering , zeolite , scanning electron microscope , selectivity , polymer chemistry , matrix (chemical analysis) , composite material , chemistry , organic chemistry , catalysis , biochemistry , engineering
CO 2 ‐selective Pebax/NaY mixed matrix membranes (MMMs) were prepared by incorporating NaY zeolite into Pebax matrix. The morphology, chemical groups, thermal stability, and microstructure of the MMMs were investigated by scanning electron microscope, Fourier transform infrared spectroscopy, thermogravimetric analysis, and X‐ray diffraction, respectively. The effects of zeolite loading amount, permeation temperature and pressure on the CO 2 /N 2 separation performance of the resultant membranes were studied. The as‐prepared MMMs are much superior to the pristine Pebax membranes in terms of permeability and selectivity. The CO 2 permeability and CO 2 /N 2 selectivity can respectively reach to 131.8 Barrer and 130.8 for MMMs made by the starting materials containing 40 wt % NaY. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48398.