Table 4 Thermodynamic parameters for the adsorption of Pb(II) on HS and HSN adsorbents.

From: Novel mercerized Haloxylon salicornicum Sahara plants derived adsorbents for efficient removal of lead(II) from wastewater

Adsorbent

Kc

ΔG0 (kJ/mol)

ΔH0 (kJ/mol)

ΔS0 (J/molK)

298.15 K

318.15 K

333.15 K

298.15 K

318.15 K

333.15 K

HS

1.582

1.954

4.384

-1.137

-1.772

-4.094

22.82

79.50

HSN

1.045

4.760

8.841

-0.109

-4.127

-6.036

51.09

172.26

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