Kinetic Model | Parameters | Pb2+ ion | Cu2+ ion |
Pseudo-first order | kad (min−1) qe, cal (mg/g) R2 | 0.059 62.08 0.836 | 0.023 26.12 0.958 |
Pseudo-second order | qe, cal (mg/g) k (g∙mg−1∙min−1) h (mg∙g−1∙min−1) qe, exp (mg/g) R2 | 52.63 2.23 × 10−3 6.17 48.5 0.997 | 52.63 1.47 × 10−3 4.08 49.2 0.996 |