Table 2.

Isotherms data for adsorption of Zn(II), Pb(II), and Fe(III) ions onto BLP/AgNPs surface.

Adsorption isotherm	Parameters	Values for metal ions
		Zn(II)	Pb(II)	Fe(III)
Langmuir	KL	0.032 l g−1	0.05 l g−1	0.08 l g−1
	qm	190 mg g−1	244 mg g−1	228 mg g−1
	R2	0.995	0.993	0.999
Freundlich	KF	16.2 mol g−1	21 mol g−1	30.5 mol g−1
	1/n	0.49	0.55	0.47
	R2	0.97	0.96	0.98
Temkin	Bt	41.7 J mol−1	58 J mol−1	49 J mol−1
	A	0.324 l g−1	0.81 l g−1	0.81 l g−1
	R2	0.99	0.99	0.99