Bioresources and Bioprocessing

Table 2 Isotherm parameters of cadmium adsorption on OP

From: Orange peel as low-cost adsorbent in the elimination of Cd(II) ion: kinetics, isotherm, thermodynamic and optimization evaluations

Isotherms	Parameters	OP
Langmuir	Q_max (mg/g)	128.23
	R_L	0.241
	b (mg/L)	0.114
	R²	0.995
Freundlich	K_F (mg/g) (mg/L)^−1/2	54.531
	n	1.665
	R²	0.996
D–R	Q (mg/g)	134.321
	ε (molJ⁻¹)²	0.752
	E (kJmol⁻¹)	0.757
	R²	0.993

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