Table 4 FTIR spectrum of C. papaya seed coagulant before and after treatments
From: The use of Carica papaya seeds as bio coagulant for laundry wastewater treatment
Wavelength range (cm−1) | Before treatment | After treatment | Difference | Remarks |
|---|---|---|---|---|
3500–3001 | 3424.6 | 3429.9 | − 5.3 | O–H |
3006.2 | - | - | N–H | |
3000–2001 | 2923.7 | - | - | N–H |
2852.8 | - | - | N–H | |
2362.7 | 2362.8 | − 0.10 | N–H | |
2000–1501 | 1744.9 | - | - | C = C |
1654.3 | - | - | C = C | |
1500–1001 | 1463.5 | - | - | = CH3 |
1161.7 | - | - | C-O | |
1118.1 | 1117.7 | 0.4 | C-O | |
1000–500 | 721.3 | 722.4 | − 1.1 | N–H |
618.6 | 618.7 | − 0.1 | N–H |