Table 5.

Thermodynamic parameters of HA adsorption on MNPs and SMNPs at different solution temperatures (conditions: pH = 3.0; agitation speed = 200 rpm; W = 0.5 g/L, C₀ = 10 mg/L and t = 90 min)

Adsorbent	T(°C)	Kd (mL/g) [Kd = qe/Ce]	ΔG° (KJ/mol) [ΔG° = −RT lnKd]	ΔH° (KJ/mol) $ln{K}_d=\frac{\Delta S^o}{R}-\frac{\Delta H^o}{RT}$	ΔS° (J/mol) $ln{K}_d=\frac{\Delta S^o}{R}-\frac{\Delta H^o}{RT}$
MNPs	20	0.492	−1.2	−6.626	−18.32
	30	0.484	−1.22
	40	0.296	−0.77
	50	0.279	−0.75
SMNPs	20	1.54	−3.75	−2.31	−8.25
	30	1.5	−3.77
	40	1.5	−3.9
	50	1.48	−3.97