Table 1 Kinetic parameters for the adsorption of CV and MB dyes on ASS adsorbent (adsorbent dose of 50 mg, volume of adsorbate of 20 mL, pH of 8, and temperature of 27 °C)
| Pseudo-first-order | Pseudo-second-order | ||||
|---|---|---|---|---|---|
| Adsorbates | qe (mg g− 1) | k1 (min− 1) | R 2 | k2 (g mg− 1 min− 1) | R 2 |
| MB | 44 | 0.10 | 0.870 | 0.20 | 0.977 |
| CV | 43 | 0.09 | 0.974 | 0.30 | 0.960 |