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Table 4 Summary of selected gas permeation data of mixed-matrix membranes that use MOFs as the filler[a]

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

Filler

Polymer

Filler loading (wt%)

Separation performance

Ref.

Testing condition

P(O2) (barrier)

Permeability enhancement (%)

α (O2/N2)

Selectivity enhancement (%)

MOF

Particle size (nm)

Pres. (bar)

Temp. (°C)

O2/N2 feed ratio[b]

Cu-bpy-hfs

200

Matrimid

40

3.9

35

Pure

3.1

107

6.3

-5

[26]

CuTPA

66,000[c]

Poly(vinyl acetate)

15

Pure

0.62

22

6.8

3

[27]

Cu3BTC2

-[d]

Polysulfone

10

Pure

2.5

47

2.5

−42

[28]

MANS-1 (Ni)

640

Polysulfone

8

3

30

Pure

1.7

13

1.6

−73

[29]

MIL-53 (Al)

-[d]

Polysulfone

8

30

3

Pure

1.7

13

4.3

−27

[29]

MIL-101 (Cr)

370

Polysulfone

8

3

30

Pure

2.5

67

5.4

−37

[29]

MIL-101 (Cr)

1000

Polyurethane ether

28

4

25

Pure

9.7

246

4.2

5

[30]

MIL-101 (Fe)

950

Polysulfone

8

3

30

Pure

2.0

36

5.8

−2

[29]

Mn (HCOO)2

-[d]

Polysulfone

10

Pure

1.1

−27

5.5

9

[28]

MOF-5

100

Matrimid

30

2

35

Pure

4.1

116

7.9

4

[31]

MOF-508a (Zn)

540

Polysulfone

8

3

30

Pure

1.7

13

3.7

−37

[29]

UiO-66 (Zr)

400

Polyurethane ether

28

4

25

Pure

6.1

118

5.5

38

[30]

Cu3BTC2

200

Polysulfone

20

1

35

21/79

9.6

379

4.7

11

This work

Cu3BTC2

200

Matrimid

20

1

35

21/79

5.6

106

6.2

4

This work

  1. Note:
  2. [a] The performance of mixed-matrix membrane was selected based on the most optimal performance in terms of O2 permeability and/or O2/N2 selectivity
  3. [b] The term “Pure” for the O2/N2 feed ratio refers to pure-component measurements. The selectivity is calculated based on pure-component O2 and N2 permeabilities
  4. [c] Based on optical micrograph
  5. [d] No information on the particle size