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Preparation and characterization of CO2-selective Pebax/NaY mixed matrix membranes |
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| Authors: | Yingfei Zheng Yonghong Wu Bing Zhang Zhi Wang |
| Affiliation: | 1. School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, 111003 China;2. Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072 China
Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 300072 China Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072 China |
| Abstract: | CO2-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 CO2/N2 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 CO2 permeability and CO2/N2 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. |
| Keywords: | CO2 separation mixed matrix membranes NaY zeolite Pebax1657 |