Evaluation of Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures

Table 3

Parameters of adsorption isothermal models.

Form		Parameters of the Langmuir model				Parameters of the Freundlich model
		KL	R^2	q0	qExp	KF	nF	R^2
Biochar 300°C	Value	2.5	0.97	1.5	1.80	0.9	1.5	0.97
	SD	0.1		0.1	0.03	0.2	0.9
Biochar 450°C	Value	1.1	0.95	1.23	1.36	1.0	1.0	0.99
	SD	0.1		0.04	0.03	0.3	0.9
Biochar 600°C	Value	2.3	0.96	0.88	1.12	0.8	1.7	0.97
	SD	0.5		0.06	0.05	0.4	1.3