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Parameters of the pseudo-first and pseudo-second-order reaction equations.
| Absorbent | Pseudo-First-Order Model | Pseudo-Second-Order Model | ||||
|---|---|---|---|---|---|---|
| k1 (min−1) |
Qe, cal (mg/g) | R2 | k2 (g/mg min) |
Qe, cal (mg/g) |
R2 | |
| Cel | 0.0322 | 16.28 | 0.9402 | 0.0019 | 33.67 | 0.9909 |
| Cel-PEI | 0.0244 | 74.03 | 0.9596 | 0.0003 | 138.88 | 0.9958 |
