The adsorption of C.I. Reactive Blue 2 and C.I. Reactive
Yellow 2 on activated carbon was studied at temperatures
of 298, 308, 318 and 328 K, with these adsorption isotherms
being shown in Figs. 7 and 8. The free energy of
adsorption (DGads) was calculated from the following equation
[37]:
DG¼RT ln KL1