Research Article
Remediation of Methyl Red Dye from Aqueous Solutions by Using Biosorbents Developed from Floral Waste
Table 2
FT-IR peak assignments of MGP and RPP along with previous work done.
| Peaks | Functional group | Attributions | References |
| 1735 | C=O, (in all plants) | Stretching vibrations (SV) | [33, 62] | 2851–2850 cm−1 and 2920–2919 cm−1 | Alkanes | SV of C–H. | [33, 62] | 3403.65–3421.19 cm−1 | O-H, of the carboxylic group | SV | [33, 62] | 3409.63–3416.57 cm−1 | Alcohol and phenol compound of O–H vibration | | [33, 62] | 3404.97–3414.65 cm−1 | N–H of amides | Symmetric and asymmetric vibrations | [33, 47, 61] | 1297.74–1243.96 cm−1 and 1056–1054 cm−1 | C–N of aliphatic amines | SV | [47, 61] | 1413.29–1419.33 cm−1 | C–C of the aromatic ring | SV | [33, 47, 66] | 1337–1441 cm−1 | C–H of alkanes group | Bending and rock vibration | [33, 47, 60] | 1,526 and 1,528 cm-1 | COO and C=O groups | | [47, 61] | 571-605 cm-1 | Aromatic compounds | Bending modes | [47] |
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