Table 3 Thermodynamic parameters from van’t Hoff analysis.

From: Magnetic chitosan kaolinite cellulose nanofibril cryogel beads for efficient removal of methylene blue from water

Parameter

Symbol

Value

Unit

Enthalpy change

ΔH°

+ 11.62

kJ/mol

Entropy change

ΔS°

+ 0.052

kJ/mol·K

Gibbs free energy (298 K)

ΔG°

–3.79

kJ/mol

Type of process

Endothermic

 

Adsorption nature

Spontaneous