Hydrothermally Produced Activated Carbon Impregnated with ZnO for the Adsorptive Removal of Toxic Pharmaceutical Contaminants from Aqueous Solution

Table 4

Thermodynamic parameters for the DS removal by HTC-AC/ZnO.

IC-DS (mg/L)	ΔH° (kJ/mol)	ΔS° (J/mol/K)	ΔG° (kJ/mol)
			303 K	313 K	323 K	333 K
50	−62.8	−166.101	−12.79	−10.44	−8.88	−7.83
100	−31.92	−75.4972	−9.18	−8.12	−7.47	−6.90
150	−17.80	−38.9261	−6.06	−5.53	−5.22	−4.87
200	−11.38	−22.9957	−4.42	−4.15	−4.01	−3.70
250	−8.34	−19.0514	−2.55	−2.41	−2.19	−1.99