Preparation and Characterization of Functionalized Cellulose Nanomaterials (CNMs) for Pb(II) Ions Removal from Wastewater

Table 3

Langmuir, Freundlich, and Temkin isotherm constants for Pb(II) ions adsorption by CNC and NaIO₄-CNM sorbent at 25.

Isotherm models	Langmuir				Freundlich				Temkin
	Qmax (mg/g)	b	RL	R^2	Kf (mg/g)	n	R^2	ΔG° (kJmol^−1)	KT	B	R^2
CNM	91.74	0.18	0.057	0.929	0.94	3.57	0.949	−2.244	3.71	9225	0.703
NaIO4-CNM	384.62	0.011	0.195	0.947	0.899	1.91	0.989	−4.47	0. 46	232.9	0.542