The fitting parameters with the Langmuir, Freundlich, and the Markham–Benton equations for the NH₄⁺ adsorption using the flow-synthesized NaCoHCF with R_mix = 1.00.

Langmuir				Freundlich				Markham–Benton
NH4Cl(aq)		Saline		NH4Cl(aq)		Saline		NH4Cl(aq) & saline
K (L mol−1)	q max (mol kg−1)	K (L mol−1)	q max (mol kg−1)	K f (mol kg−1)	1/n	K f (mol kg−1)	1/n	q max (mol kg−1)	K (L mol−1)	K′ (L mol−1)
13.99	3.97	0.28	4.28	22.27	0.77	0.82	0.96	4.36	24.84	0.26