Table 4 Thermodynamic coefficients for adsorption CR onto K@AM-CTS composite beads.

From: Reusable kaolin impregnated aminated chitosan composite beads for efficient removal of Congo red dye: isotherms, kinetics and thermodynamics studies

Temperature (K)

ΔG° (kJ/mol)

ΔH° (kJ/mol)

ΔS° (J/mol K)

298

− 5.655

22.080

0.093

308

− 6.223

318

− 7.146

328

− 8.463