Volume 43, Issue 7 pp. 1451-1460
Research Article

PEBA/PSf Multilayer Composite Membranes for CO2 Separation: Influence of Dip Coating Parameters

Mahdi Elyasi Kojabad

Mahdi Elyasi Kojabad

Sahand University of Technology, Nanostructure Material Research Center (NMRC), P.O. Box 51335-1996, Tabriz, Iran

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Masumeh Momeni

Masumeh Momeni

Sahand University of Technology, Nanostructure Material Research Center (NMRC), P.O. Box 51335-1996, Tabriz, Iran

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Ali Akbar Babaluo

Corresponding Author

Ali Akbar Babaluo

Sahand University of Technology, Nanostructure Material Research Center (NMRC), P.O. Box 51335-1996, Tabriz, Iran

Correspondence: Ali Akbar Babaluo ([email protected]), Nanostructure Material Research Center (NMRC), Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.Search for more papers by this author
Mohammad Javad Vaezi

Mohammad Javad Vaezi

Sahand University of Technology, Nanostructure Material Research Center (NMRC), P.O. Box 51335-1996, Tabriz, Iran

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First published: 09 April 2020
Citations: 14

Abstract

Polyether block amide (PEBA) polymeric layers were prepared on polysulfone (PSf) supports via dip coating. The effects of the coating speed and the solution concentration on the membrane performance were studied. The membranes were characterized by scanning electron microscopy, Fourier transform infrared spectra, and gas permeation. The coating speed was adjusted in the range of 0.32–0.48 cm s−1 at a solution concentration of 3 wt % to obtain suitable membranes so that the CO2 permeance and the CO2/N2 selectivity increased by more than three and ten times, respectively, compared to other speed ranges. Statistical analysis also showed that the effect of the interaction between solution concentration and coating speed is more considerable than the separate effects of both factors.

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