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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

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BMC Chemical Engineering

ISSN: 2524-4175

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