Research Article
CO2-Philic [EMIM][Tf2N] Modified Silica in Mixed Matrix Membrane for High Performance CO2/CH4 Separation
Figure 4
Cross-sectional membrane morphology of prepared membrane with (a) Pure PC, (b) PC-Sil, (c) 1.0:0.5, (d) 1.0:1.0, (e) 1.0:1.5, (f) 1.0:2.0, and (g) 1.0:2.5.
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