Preparation and Adsorption Properties of Biochar/g-C₃N₄ Composites for Methylene Blue in Aqueous Solution

Table 4

Adsorption isotherm parameters.

(a)

/	Langmuir-Freundlich model				Langmuir model
	(mg/g)	(L/mg)			(mg/g)	(L/mg)
298	802.581	0.002	1.310	0.996	772.009	0.00398	0.991
308	833.748	0.00175	1.365	0.998	797.265	0.00426	0.989
318	1199.645	0.00089	1.416	0.991	1024.867	0.00470	0.983

(b)

/	Freundlich model			Temkin model
	(mg L/g)		^2	(mg/g)	(L/g)
298	17.207	1.355	0.976	669.153	263.019	0.927
308	17.277	1.327	0.966	740.199	295.710	0.938
318	17.557	1.334	0.967	1025.028	364.215	0.893