Covalently Modified Graphene Oxide and Polymer of Intrinsic Microporosity (PIM-1) in Mixed Matrix Thin-Film Composite Membranes

Table 3 Selectivity for the graphene containing PIM-1 TFC membranes

Membrane code	Filler	Filler content, wt.%	Selectivity				Reference
Membrane code	Filler	Filler content, wt.%	O₂/N₂	CH₄/N₂	CO₂/N₂	CO₂/CH₄	Reference
PolyActive™	–	–	3.0	4.4	60	14	[38]
Matrimid® 5218	–	–	7.0	1.2	37	30	[39]
Polyetherimide	–	–	7.6	0.58	31	54	[40]
PIM1-0.00096G	Graphene	0.00096	2.6	1.67	14.6	8.8	[1]
PIM-1	–	–	3.26 ± 0.02	1.61 ± 0.01	21.3 ± 0.02	13.2 ± 0.02	This work
PIM1-9GO	GO	9	3.06 ± 0.35	1.40 ± 0.04	18.0 ± 2.82	12.9 ± 1.43
PIM1-33GO		33	2.09 ± 0.52	1.38 ± 0.08	9.99 ± 4.33	7.24 ± 2.21
PIM1-50GO		50	0.99 ± 0.01	1.34 ± 0.01	1.32 ± 0.07	0.99 ± 0.04
PIM1-76GO		76	0.93 ± 0.01	1.35 ± 0.02	0.86 ± 0.01	0.64 ± 0.02
PIM1-9GO-AEDPPF	GO-AEDPPF	9	4.70 ± 0.06	1.49 ± 0.02	25.9 ± 0.35	17.4 ± 0.03
PIM1-33GO-AEDPPF		33	3.86 ± 0.14	1.49 ± 0.01	19.7 ± 1.24	13.2 ± 0.02
PIM1-50GO-AEDPPF		50	1.44 ± 0.04	1.35 ± 0.01	4.13 ± 0.24	3.06 ± 0.12
PIM1-76GO-AEDPPF		76	0.95 ± 0.02	1.33 ± 0.005	0.87 ± 0.08	0.65 ± 0.04
PIM1-9GO-DClBAO	GO-DClBAO	9	3.74 ± 0.03	1.61 ± 0.04	21.7 ± 0.15	13.5 ± 0.01
PIM1-33GO-DClBAO		33	3.63 ± 0.06	1.59 ± 0.05	21.1 ± 0.45	13.3 ± 0.03
PIM1-50GO-DClBAO		50	1.21 ± 0.07	1.36 ± 0.03	2.79 ± 0.54	2.05 ± 0.29
PIM1-76GO-DClBAO		76	0.71 ± 0.03	1.05 ± 0.09	0.74 ± 0.02	0.7 ± 0.06

Italicized numbers indicate the selectivity of the membrane equal or exceeding the PIM-1 TFC membrane