Effect of Functionalized Carbon Nanotubes in the Detection of Benzene at Room Temperature

Table 2

Intensity of peaks appeared in pristine CNT, CNT-carboxylic, and CNT-amide.

Sample	Peak (cm^−1) (bond)	Intensity (%)
Pristine CNT	1640 (C=C)	88
	2880 (C=O carboxyl)	74
CNT-carboxylic	1640 (C=C)	54
	1880 (C=O carbonyl)	12
	3100 (O-H)	78
	2880 (C=O carboxyl)	89
CNT-amide	1650 (C=O amide)	98
	1404 (N-H bending)	79
	2880 (C=O carboxyl)	81
	3300 (N-H stretching)	57