Isotherm models for IC dye sorption Bi₂O₃ doped MgO nanomaterials.

Equilibrium model	Linear form	Nanomaterials	Parameters	Values
Langmuir62		MgOBi0	q m (mg g−1)	126.00
			K L (mg g−1)	0.19
			R L (L mg−1)	0.05
			R 2	0.96
		MgOBi1	q m (mg g−1)	66.22
			K L (mg g−1)	0.17
			R L (L mg−1)	0.06
			R 2	0.94
		MgOBi2	q m (mg g−1)	276.00
			K L (mg g−1)	0.12
			R L (L mg−1)	0.07
			R 2	0.96
		MgOBi3	q m (mg g−1)	66.22
			K L (mg g−1)	0.15
			R L (L mg−1)	0.06
			R 2	0.95
Freundlich63		MgOBi0	n	1.10
			K F (L mg−1)	21.46
			R 2	0.99
		MgOBi1	n	1.33
			K F (L mg−1)	24.17
			R 2	0.99
		MgOBi2	n	1.19
			K F (L mg−1)	27.93
			R 2	0.99
		MgOBi3	n	1.05
			K F (L mg−1)	10.76
			R 2	0.99