Synthesis and Characterization of Carbon Nanofibers Grown on Powdered Activated Carbon

Table 3

Functional groups detected by FTIR on PAC, impregnated PAC, and PAC-CNF.

Wave number at peak (cm^−1)	Functional group	Type of vibration
3859–2519	–OH (un-bonded), –OH (bonded)	No interferences such as OH in lattice, –OH stretch
2400–2250 & 1965, 1746	Aldehyde, ketone, carboxylic acid	C=O, carbonyl group
2343	CO2
1573	C=C aromatic ring	C=C stretch
996	Methyl group	Saturated –CH3
766 & 702	NO2	Bending
739	Hydrogen on an aromatic ring	Adjacent hydrogens on an aromatic ring (Ortho)