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Table 2

Isotherm parameters for CBZ adsorption onto Fe⁰-rGO

pH	Langmuir model				Freundlich model
pH	K_L	Q	R²	R²_adj	n⁻¹	K_F	R²	R²_adj
3	2.8	50	0.694	0.592	0.43	11.51	0.899	0.866
5.5	5.12	32.25	0.832	0.766	0.53	5.91	0.972	0.962
7	8.10	33.30	0.973	0.965	0.66	3.97	0.995	0.994
8	14	38.46	0.917	0.889	0.73	2.86	0.994	0.992

pH	Langmuir model				Freundlich model
pH	K_L	Q	R²	R²_adj	n⁻¹	K_F	R²	R²_adj
3	2.8	50	0.694	0.592	0.43	11.51	0.899	0.866
5.5	5.12	32.25	0.832	0.766	0.53	5.91	0.972	0.962
7	8.10	33.30	0.973	0.965	0.66	3.97	0.995	0.994
8	14	38.46	0.917	0.889	0.73	2.86	0.994	0.992