Table 3.

Thermodynamics parameters of MB and CR adsorption on CuGA 90–2.2.

Dye	∆H (kJ/mol)	∆S (J/mol)	∆G (kJ/mol)
			303 K	313 K	323 K
MB	− 19.3517	− 50.2856	− 4.2442	− 3.3373	− 3.2561
CR	− 10.5147	− 16.0269	− 5.6700	− 5.4106	− 5.3851