Research Article
Adsorbent Ability of Treated Peganum harmala-L Seeds for the Removal of Ni (II) from Aqueous Solutions: Kinetic, Equilibrium and Thermodynamic Studies
Table 1
Kinetic constants for the adsorption of Ni ions on TPHS.
| Kinetic model | Parameters | TPHS |
| Pseudo-first-order | (cal) (mg/g) | 137.783 | (exp) (mg/g) | 62.740 | (1/min) | 0.044 | | 0.842 |
| Pseudo-second-order | (cal) (mg/g) | 137.783 | (exp) (mg/g) | 133.33 | (g/mg·min) | 0.004 | | 0.997 |
| Intraparticle mass transfer | (mg/g·min) | 11.884 | (mg/g) | 47.402 | | 0.683 |
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