Table 2 Kinetic parameters for the adsorption of MO onto MgAl-LDH, γ-AlO(OH), and γ-AlO(OH)/MgAl-LDH
Kinetic models | Parameters | MgAl-LDH | γ-AlO(OH) | γ-AlO(OH)/MgAl-LDH |
|---|---|---|---|---|
Pseudo-first-order | qe (mg g−1) experiment | 155.5 | 183.3 | 1000 |
qe (mg g−1) model | 48.6 | 40.9 | 146.7 | |
K1 (min−1) | 0.05537 | 0.64079 | 0.13575 | |
R 2 | 0.50311 | 0.86471 | 0.65129 | |
Pseudo-second-order | qe (mg g−1) model | 156.5 | 183.5 | 1001.3 |
K2 (g mg−1 min−1) | 0.00523 | 0.11053 | 0.00450 | |
R 2 | 0.9998 | 1 | 1 |