Table 4. Thermodynamic Parameters for the Adsorption of MB and CV on MS, OMS-1, and OMS-2 (V = 50 mL, Adsorbent Mass = 0.05 g).

				ΔG° (kJ mol–1)
dyes	adsorbents	ΔS° (J mol–1 K–1)	ΔH° (kJ mol–1)	T = 298 K	T = 308 K	T = 318 K	T = 328 K
MB	MS	–51.11	–13.18	2.05	2.56	3.07	3.58
	OMS-1	–61.90	–21.58	–3.13	–2.51	–1.89	–1.27
	OMS-2	–65.67	–22.77	–3.20	–2.54	–1.88	–1.23
CV	MS	–54.04	–16.91	–0.81	–0.26	0.28	0.82
	OMS-1	–55.52	–14.94	1.61	2.16	2.72	3.27
	OMS-2	–49.41	–13.15	1.57	2.09	2.56	3.07