Equilibrium, Kinetics, and Thermodynamics of the Biosorption of Zn(II) from Aqueous Solution Using Powdered Cow Hooves

Table 2

Isotherm parameters for the removal of Zn(II) by CH at different temperatures.

Isotherm	Parameter	Temperature (K)
		298	308	318
Langmuir	𝑞𝑚 (mgg^−1)	10.93	11.53	11.58
	𝐾𝐿 (Lmg^−1)	0.776	2.121	2.181
	𝑅^2	0.9495	0.9774	0.9637
Freundlich	𝐾𝑓 (L1/𝑛 g^−1 mg−1/𝑛)	4.095	7.413	7.58
	𝑛	2.056	1.868	1.889
	𝑅^2	0.9014	0.7828	0.7617
D-R	𝑞𝐷 (mgg^−1)	7.35	11.05	11.19
	𝐾𝐷 (moL^2 KJ^−2)	−0.0755	−0.0574	−0.0491
	𝐸 (KJ moL^−1)	2.57	2.951	3.191
	𝑅^2	0.8112	0.9766	0.9441