Table 1.
Summarize FT-IR spectral positions with their corresponding vibration modes for biomass filtrate and Ag-NPs synthesized by Bacillus cereus A1-5, Streptomyces noursei H1-1 and Rhizopus stolonifer A6-2.
| Absorption frequency (cm−1) | Chemical groups | Compound class |
|---|---|---|
| 1013 | C–N stretching | Vibration of aromatic and aliphatic amines |
| 1392 | C–H bending | aldehyde |
| 1545 | N–H stretching | Vibration of amide 1 of proteins |
| 1640 | C=C stretching, C=N stretching, | Alkene, imine/oxime |
| 2017 | C–H2 stretching | Aldehylic amine |
| 2146 | C≡C stretching | alkyne |
| 3300 | N–H stretching | Aliphatic primary amine |
| 3325 | O–H stretching, N–H stretching | Alcohol, secondary amine |