Surface Modification Effects on CNTs Adsorption of Methylene Blue and Phenol

Table 2

Physical properties of CNTs.

CNTs	BET surface area (m^2/g)	Total pore Volume (cm^3/g)	Purity (%)*
CNT-A (As synthesized)	90.429	0.4986	93.51
CNT-E (As synthesized)	89.159	0.1729	94.89
CNT-A-HM	43.776	0.2026	92.95
CNT-A-AM	49.976	0.2339	95.65
CNT-E-HM	55.392	0.1866	94.68
CNT-E-AM	86.741	0.1803	97.46

*Determined by TGA; purity = 100% − residue (%).