The preparation of  SPEEK /phosphate salts membranes and application for  CO 2 /CH 4   separation | Zendy

Lv Jianfei | Zendy; Liu Yuanyuan | Zendy; Qin Yun | Zendy; Guo Ruili | Zendy; Zhang Jianshu | Zendy; Wei Zhong | Zendy

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The preparation of SPEEK /phosphate salts membranes and application for CO 2 /CH 4 separation

Author(s) -

Lv Jianfei,

Liu Yuanyuan,

Qin Yun,

Guo Ruili,

Zhang Jianshu,

Wei Zhong

Publication year - 2016

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.43399

Subject(s) - membrane , chemical engineering , selectivity , phosphate , fourier transform infrared spectroscopy , materials science , solubility , permeability (electromagnetism) , polymer , polymer chemistry , chemistry , organic chemistry , catalysis , biochemistry , engineering

SPEEK/phosphate salts membranes were prepared and utilized for CO 2 /CH 4 separation. SPEEK with abundant –SO 3 H groups and EO groups on polymer chains would be beneficial for CO 2 transport. The doped phosphate salts (NaH 2 PO 4 , Na 2 HPO 4 and Na 3 PO 4 ) with different acid‐base properties increased the water content in the membrane, and water was expected to increase both the solubility and diffusivity of CO 2 in the membrane. All membranes were characterized by FTIR, TGA, and XRD. The CO 2 permeability and CO 2 /CH 4 selectivity of SPEEK/Na 3 PO 4 membranes were higher than that of SPEEK/NaH 2 PO 4 and SPEEK/Na 2 HPO 4 membranes. Compared to the pure SPEEK membrane, the CO 2 permeability and CO 2 /CH 4 selectivity of SPEEK/Na 3 PO 4 −10 membrane were increased by 144% and 65%, respectively. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43399.

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