Metal-Organic Framework MIL-53(Fe) as an Adsorbent for Ibuprofen Drug Removal from Aqueous Solutions: Response Surface Modeling and Optimization

Table 7

Nonlinear isotherm constants for the adsorption of IBU over MIL-53(Fe).

Kinetic models	Equation	Parameters	Value
Langmuir		kL (L/mg)	1.80
		Qm (mg/g)	10.67
		RL	0.03
		MRE (%)	2.46
		SSE	0.18
		(Radj)^2	0.997
Freundlich		kF (mg/g)/(mg/L)^1/n	6.39
		1/n	0.22
		MRE (%)	6.43
		SSE	0.98
		(Radj)^2	0.980
Temkin		kT (L/mg)	39.24
		BT	1.77
		MRE (%)	3.13
		SSE	0.31
		(Radj)^2	0.993
D-R		B	0.08
		Qm (mg/g)	9.72
		E (kJ/mol)	2.47
		MRE (%)	5.34
		SSE	1.18
		(Radj)^2	0.978