Journal of Chemistry

Research Article

Using Pomegranate Peel and Date Pit Activated Carbon for the Removal of Cadmium and Lead Ions from Aqueous Solution

Table 1

The main functional groups detected on the surfaces of DPAC and PPAC.
Frequency (cm−1)DPACPPAC
Before adsorptionAfter adsorptionBand function groupsFunction groups
39563949−OH stretching
3600–31503590–3142Carboxylic acid −OH stretch
3460–33503451–3339Carboxylic acid −OH stretch
29352927C–H vibrations
23692391O=C=O asymmetric stretch (CO2)
17501741Carboxylic COOH stretching
16541659Carboxylic COOH stretching
1470–12691461–1260C–H bending
10251022C–O stretching of alcoholic OH
565561C–H vibration
Not available.