Investigations of Heavy Metal Ion Sorption Using Nanocomposites of Iron-Modified Biochar

Table 4 Adsorption isotherm parameters and correlation coefficients as a function of temperature for the adsorption of Cd(II) on MBC1and MBC2

System	Parameters	MBC1			MBC2
		Temperature [K]
		295	315	335	295	315	335
Langmuir	q _e,exp	37.64	32.50	26.85	41.33	39.44	32.52
	q ₀	38.00	35.04	28.08	41.25	41.68	32.71
	K _L	0.182	0.045	0.043	0.191	0.072	0.068
	R _L	0.099	0.310	0.317	0.095	0.216	0.227
	R ²	0.999	0.952	0.993	0.990	0.982	0.994
Freundlich	K _F	13.06	9.29	4.49	13.06	10.76	6.54
	1/n	0.204	0.225	0.332	0.187	0.249	0.304
	R ²	0.976	0.618	0.794	0.966	0.627	0.771
Temkin	A	37.542	7.590	0.796	102.432	5.344	1.646
	B	4.103	4.255	4.974	3.990	5.660	5.347
	b _T	603.84	582.35	498.15	620.99	437.77	463.38
	R ²	0.983	0.698	0.917	0.986	0.631	0.897