Table 7 Error metrics calculated for the kinetic models used for the removal of Cd2+ ions by CuS nanorods.
Model | Temp | MSE | RMSE | MAE | χ² | R2 |
|---|---|---|---|---|---|---|
Pseudo first order | 303 K | 12.34 | 3.51 | 2.89 | 1.87 | 0.984 |
313 K | 14.21 | 3.77 | 3.12 | 2.15 | 0.981 | |
323 K | 16.05 | 4.01 | 3.45 | 2.43 | 0.978 | |
Pseudo second order | 303 K | 1.02 | 1.01 | 0.85 | 0.15 | 0.998 |
313 K | 1.35 | 1.16 | 0.97 | 0.21 | 0.997 | |
323 K | 1.78 | 1.33 | 1.12 | 0.28 | 0.996 | |
Intraparticle diffusion | 303 K | 18.92 | 4.35 | 3.78 | 3.01 | 0.962 |
313 K | 20.45 | 4.52 | 4.05 | 3.32 | 0.958 | |
323 K | 22.17 | 4.71 | 4.31 | 3.68 | 0.953 | |
Elovich | 303 K | 15.23 | 0.90 | 3.45 | 2.42 | 0.972 |
313 K | 17.45 | 4.19 | 3.78 | 2.81 | 0.968 | |
323 K | 19.87 | 4.46 | 4.12 | 3.19 | 0.963 |
