Table 5 Thermodynamic parameters for adsorption of Cr (VI) ions on both Ni/Fe LDH and Ni/Fe LDH/GL.
T (K) | ∆G°(kJ/mol) | ∆H°(kJ/mol) | ∆S°(J/K mol) | |
|---|---|---|---|---|
Ni/Fe LDH | 296 | −1298.597 | −6.6986 | −18.415 |
308 | −949.700 | |||
318 | −826.517 | |||
328 | −698.632 | |||
Ni/Fe LDH/GL | 296 | −4113.865 | −16.2622 | −41.57 |
308 | −3267.982 | |||
318 | −2916.878 | |||
328 | −2800.938 |