Table 1 functional groups identified in different wave numbers of synthesized SeNPs.
Wavenumber (cm− 1) | functional groups | Peaks corresponding to functional groups |
|---|---|---|
3563 | The presence of structural moisture caused by water vapour O-H present in alcohols and phenols present in the structure of cyanobacterial extract | O-H vibrational bond |
3563 | N-H bond | |
2946–3046 | OH bonds in carboxylic acids | Shoulder spade |
2946–3046 | CH3 | C-H bonds |
1413, 1548, 1709 | Amine groups and N-H bonds that are amide bonds | Amide peaks of I, II and III |
1709 | Ester linkage | C = O bond |
1280 | Aromatic amines | Bonding stretching vibrations of amine |
1114 | Alcohol, ester, carboxylic acid and ether groups | C-O bond stretching vibrations |
830 | Bending vibration of aromatic ring of cyanobacterial extract | Bonding C-H stretching vibrations |
617 | Primary alcohol | C-O bond stretching vibrations |
404 | Synthesized SeNPs | Sharp and intense peak |