Table 3.

Calculated parameters of isotherm models for the chromium adsorption onto Uio-66 and ZIF-8

Isotherm (Uio-66)	Parameters	Cr (VI) concentration (mg l−1)		Isotherm (ZIF-8)	Parameters	Cr (VI) concentration (mg l−1)
		50	80			50	80
Freundlich	n	3.45	4.56	Freundlich	n	2.42	3.78
	R2	0.876	0.884		R2	0.785	0.874
	KF	20.12	21.34		KF	23.4	23.7
Langmuir	KL	1.675	1.243	Langmuir	KL	0.876	0.985
	R2	0.983	0.965		R2	0.897	0.894
	qm	35.78	85.45		qm	76.65	150.85