Preparation and characterization of supported PES membranes

In the present study. polyethersulfone (PES) membranes on a macroporous alumina support was prepared by solvent-deposition method to separate H-2/CH4 mixture. The membrane solution viscosities were determined in order to understand the effect of PES concentration on the formation of selective membranes over a support. Supported PES membranes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and single gas permeability measurements of H-2 and CH4. The membrane casting solution with 20% PES concentration provided the formation of defecdess single-layer supported membrane. At lower concentrations. the penetration of membrane casting solution into the pores of support was prevented by using intermediate layer. hence the prepared 2-layered membrane performance was improved. H-2/CH4 ideal selectivity of best membrane exhibited is 73 at 35 degrees C. which shows promise for H-2/Hydrocarbon separation.


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Citation Formats
B. TOPUZ, L. Yılmaz, and H. Kalıpçılar, “Preparation and characterization of supported PES membranes,” JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, pp. 155–164, 2019, Accessed: 00, 2020. [Online]. Available: