Adsorption of Phenol from Aqueous Solutions by Carbon Nanomaterials of One and Two Dimensions: Kinetic and Equilibrium Studies

Table 3

Isotherm parameters and the correlation coefficient for the adsorption of phenol on CNMs.

Adsorbent	(mg/L)	Langmuir				Freundlich
		(mg/g)	(L/mg)			(mg/g) (L/mg)^1/n
SWNT	10	25.126	0.201	0.499	0.968	7.909	0.294	0.985
	20			0.249
	30			0.166
	40			0.125
	50			0.100
	60			0.083
SWNTO	10	30.864	0.120	0.833	0.967	6.074	0.410	0.994
	20			0.417
	30			0.278
	40			0.208
	50			0.167
	60			0.139
MWNT	10	25.381	0.142	0.704	0.975	6.162	0.353	0.994
	20			0.352
	30			0.235
	40			0.176
	50			0.141
	60			0.117
MWNTO	10	19.608	0.122	0.817	0.985	4.777	0.337	0.998
	20			0.408
	30			0.272
	40			0.204
	50			0.163
	60			0.136
RGO	10	22.272	0.102	0.980	0.963	4.338	0.393	0.965
	20			0.490
	30			0.327
	40			0.245
	50			0.196
	60			0.163
GEO	10	28.986	0.142	0.704	0.900	7.456	0.334	0.943
	20			0.352
	30			0.235
	40			0.176
	50			0.141
	60			0.117