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Table 3 O2 and N2 solubility and diffusivity data for pure polymer and mixed-matrix membranes at 35 °C

From: Incorporation of Cu3BTC2 nanocrystals to increase the permeability of polymeric membranes in O2/N2 separation

Membrane Density (g/cm3) O2 solubility, (mol/m3-bar) O2 diffusivity, × 10− 13 (m2/s) N2 solubility, (mol/m3-bar) N2 diffusivity, × 10− 13 (m2/s) Sorption selectivity Diffusion selectivity
Polysulfone 1.240 19.1 7.98 14.3 2.53 1.34 3.16
Polysulfone + 20 wt% Cu3BTC2 1.254 29.0 23.6 24.2 6.01 1.20 3.94
Matrimid 1.200 31.4 6.58 27.7 1.25 1.13 5.26
Matrimid + 20 wt% Cu3BTC2 1.280 48.3 8.79 43.8 1.57 1.10 5.60