Table 5.
CO2 uptake capacities of the studied samples.
| Sample | CO2 Uptake (mmol/g) | ||||
|---|---|---|---|---|---|
| 273 K | 298 K | 298 K * | Pressure (Bar) | Reference | |
| Li0.61Na0.39X | 5.94 | 5.71 | 5.34 | 0.95 | this study |
| NaX | 5.55 | 5.45 | 5.10 | 0.95 | this study |
| K0.76Na0.24X | 4.54 | 4.26 | - | 0.95 | this study |
| Mg0.32Na0.36X | 3.19 | 2.64 | - | 0.95 | this study |
| Ca0.45Na0.10X | 3.58 | 3.18 | - | 0.95 | this study |
| NaX | - | 4.98 | - | 1.00 | [21] |
| KX | - | 4.44 | - | 1.00 | [21] |
| LiX | - | 5.62 | - | 1.00 | [21] |
| Na-Zeolite β | - | 2.80 | - | 1.00 | [22] |
| SBA-15 | - | 0.50 | - | 1.00 | [33] |
| Cs-MER | - | 2.85 | - | 5.00 | [34] |
| K-MER | - | 4.20 | - | 5.00 | [34] |
| Na-MER | - | 4.80 | - | 5.00 | [34] |
| 13X | - | 6.90 | - | 15.00 | [35] |
| 13X-K | - | 6.90 | - | 20.00 | [19] |
* CO2 uptake after aging 200 adsorption/desorption cycles.