Comparative and Equilibrium Studies on Anionic and Cationic Dyes Removal by Nano-Alumina-Doped Catechol Formaldehyde Composite

Table 3

Thermodynamics parameters of CR and SF Dyes on APC.

Temperature (K)	ΔG° (KJ)	ΔH° (KJ)	ΔS° (KJ/k)
CR dye
298	−3.33	42.52	123.76
308	−5.50
318	−8.639
328	−9.776
SF dye
298	−2.42	31.65	102.18
308	−3.26
318	−5.61
328	−7.14