Table 4 Thermodynamic result for the adsorption of Pb2+, Cd2+ and Zn2+ by A. tumefaciens S12
Adsorbate | T (°C) | ∆G (kJ·mol−1) | ∆H (kJ mol−1) | ∆S (J·(mol K) −1 | r2 |
|---|---|---|---|---|---|
Pb2+ | 20 | -2.21 | 22 | 84 | 0.8027 |
25 | -2.81 | ||||
30 | -3.50 | ||||
35 | -3.37 | ||||
Cd2+ | 20 | -0.72 | 24 | 84 | 0.9249 |
25 | -1.31 | ||||
30 | -1.83 | ||||
35 | -1.93 | ||||
Zn2+ | 20 | -0.18 | 13 | 44 | 0.9288 |
25 | -0.51 | ||||
30 | -0.75 | ||||
35 | -0.83 |