Kinetic parameters of the PFO, PSO, and intraparticle diffusion of the Weber–Morris (ID-WM) models for the adsorption of MB on SACCS and SACCS-350.
| Models | Parameters | SACCS | SACCS-350 |
|---|---|---|---|
| Pseudo-first-order model (PFO) | q e,exp (mg g−1) | 29.05 | 110.08 |
| q e (mg g−1) | 13.51 | 34.31 | |
| k 1 (min−1) | 0.0017 | 0.0070 | |
| R 2 | 0.8876 | 0.9797 | |
| Pseudo-second-order model (PSO) | q e (mg g−1) | 36.65 | 129.75 |
| k 2 (mg g−1 min−1) | 0.0007 | 0.0002 | |
| R 2 | 0.9794 | 0.9925 | |
| Intraparticle diffusion of Weber–Morris model (ID-WM) | k ip1 (mg g−1 min1/2) | 4.8908 | 13.6524 |
| k ip2 (mg g−1 min1/2) | 2.0189 | 6.1017 | |
| k ip3 (mg g−1 min1/2) | 0.7414 | 1.5490 |