Table 6.

Parameters of the First- and Second-order kinetic models for adsorption of Congo Red by Ag–Cu–CeO₂ nanocomposite.

	First Order				Second Order
Nanocomposite	${\mathit{q}}_{\mathit{e}}\mathit{exp}$	${\mathit{q}}_{\mathit{e}}\mathit{c}\mathit{a}\mathit{l}{\mathit{c}}^{\prime }$	${\mathit{k}}_{\mathbf{1}}$	${\mathit{R}}^{\mathbf{2}}$	${\mathit{q}}_{\mathit{e}}\mathit{exp}$	${\mathit{q}}_{\mathit{e}}\mathit{c}\mathit{a}\mathit{l}{\mathit{c}}^{\prime }$	${\mathit{k}}_{\mathbf{1}}$	${\mathit{R}}^{\mathbf{2}}$
ACC 10:20:70	54.22	0.172	0.021	0.9806	54.22	68.02	3*10-4	0.9959
ACC 15:15:70	54.58	0.218	0.021	0.9352	54.58	59.88	7*10-4	0.9963
ACC 20:10:70	34.91	0.251	0.015	0.9255	34.91	39.21	8*10-4	0.9903