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. 2023 Nov 2;9(11):e21862. doi: 10.1016/j.heliyon.2023.e21862

Table 5.

Thermodynamic parameters for the sorption of Ni(II) onto WCS-Raw, WCS-CA, WCS-AM, and WCS-Si

Adsorbent T (K) ΔGo (kJ/mol) ΔSo (J/(mol K)) ΔHo (kJ/mol)
313.15 −4.13799
WCS-Raw 298.15 −1.87222 78.9963 20.88061
291.15 −2.63941
313.15 −2.96699
WCS-CA 301.15 −2.67181 32.5385 7.190945
291.15 −2.24997
313.15 −1.56521
WCS-AM 301.15 −1.30693 32.89018 8.688961
291.15 −0.83996
323.15 −13.4196
WCS-Si 313.15 −9.56271 279.2423 77.26699
291.15 −4.19999