Table 2. CO2 Uptakes of Various Porous ACs in Comparison with N-ACs Derived from Chitosan at 0 °C/25 °C, under 1 bar Pressure.
| class | carbon source | CO2 adsorbed (0 °C/25 °C, mmol g–1) | refs |
|---|---|---|---|
| biomass-derived ACs | cellulose | 5.8/3.9 | (2) |
| eucalyptus sawdust | 6.1/4.8 | (2) | |
| asparagus lettuce leavesa | 6.0/4.4 | (3) | |
| black locust | 7.2/5.0 | (4) | |
| pine cone | 7.7/4.8 | (5) | |
| gelatin and starch | 7.5/3.8 | (6) | |
| coconut shell | 7.0/4.7 | (26) | |
| Coca Cola | 5.7/5.2 | (33) | |
| water chestnut shell | 6.0/4.5 | (34) | |
| glucosamine hydrochloride | 6.4/4.5 | (35) | |
| sawdust | -/5.8 | (36) | |
| chitosan | 7.9/5.6 | this work | |
| non-biomass-derived ACs | carbide derived carbon | 7.1/- | (7) |
| acetonitrile | 6.9/4.4 | (8) | |
| diaminomaleonitrile | -/3.4 | (18) | |
| polypyrrole | 6.2/3.9 | (37) | |
| petroleum coke | 6.1/3.4 | (38) | |
| benzimidazole-linked polymers | 8.3/5.8 | (39) |
a
CO2 adsorption capacity at 0/25 °C and 1 atm.