Wave number (cm-1) Bond Functional Groups 1100 C-H wag (CH2X) Alkyl halides 1300-1400 C-O stretch Alcohols, ethers, ester, carboxylic acid 1630 N-H bend 1o amine 1750 C=O Esters, carboxylic acids, aldehydes, carbonyl 2800 H-C=O aldehydes 3230 C-H stretch Alkyne 3400 O-H stretch, H bonded Alcohols, phenols

Table 4: FT-IR peaks assignments of functional group on Activated carbon surface.