Table 3.
Thermodynamic parameters for adsorption of Pb2+ with NH2–CoFe2O4/SBA–15.
| T (K) | ΔG (kJ·mol−1) | ΔS (J·mol−1·K−1) | ΔH (kJ·mol−1) |
|---|---|---|---|
| 298 | −5.45 | 121.5 | 30.76 |
| 308 | −6.66 | ||
| 318 | −7.88 |
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