Adsorptive Removal of Cd(II) Ions from Wastewater Using Maleic Anhydride Nanocellulose

Table 2

Langmuir and Freundlich isotherm constants for Cd(II) ion adsorption by CNC and MA-CNC sorbent at 25°C.

Adsorption isotherm	Langmuir model				Freundlich model
Adsorbents	Qmax (mg/g)	b	RL	R^2	kf	n	R^2	(ΔG°)
CNC	75.76	0.43	0.104	0.977	0.93	3.57	0.936	−1.576
MA-CNC	215.52	0.083	0.602	0.977	0.91	1.97	0.932	−0272