Adsorbents | Adsorption of Cd(II) | |||||
Adsorption Kinetic Models | ||||||
Pseudo First-Order Kinetics | Pseudo Second-Order Kinetics | Intra-Particle Diffusion Kinetics | ||||
qe (mg/g) | K1 (mg∙g−1∙min−1) | qe (mg/g) | K2 (g∙mg−1∙min−1) | C (mg/g) | Kp (mg∙g−1∙min−0.5) | |
Si-o-NO2 | 17.179 | 7.149*10−3 | 58.479 | 0.0186 | 51.126 | 0.945 |
Si-m-NO2 | 17.952 | - | 52.083 | - | 52.046 | 0.0013 |
Si-p-NO2 | 14.184 | - | 55.866 | - | 55.838 | 0.0091 |