Table 1. Isotherms for Pb²⁺ Adsorption onto the CFA/GO/WO₃ Nanocomposite.

	temperature (°C)
parameters	25	35	45
Langmuir
qm (mg/g)	34.72	39.90	41.51
R2	0.9819	0.9380	0.9952
b (L/mg)	1.0000	1.002	1.0000
RL	0.0114	0.0114	0.0114
Freundlich
kf (mg/g)	32.04	31.23	1.11
N	26.04	13.43	9.57
R2	0.0436	0.1496	0.2006
D–R
qm (mg/g)	1.30	1.34	1.33
E (kJ/mol)	4.61 × 10–4	4.42 × 10–4	2.0 × 10–4
R2	0.38096	0.48028	0.80732