Table 1.
Elemental composition of untreated and PPF-NFs for different deposition durations and percentage of incorporated F after TFBA derivatization.
| Deposition Duration (s) | Before TFBA Derivatization | Incorporated Amount of F after TFBA Derivatization |
||
|---|---|---|---|---|
| C (%) | O (%) | N (%) | F (%) | |
| 0 | 76.3 ± 0.4 | 23.7 ± 0.4 | 0 | 0 |
| 10 | 79.0 ± 1.0 | 8.9 ± 0.2 | 12.1 ± 0.9 | 4.2 ± 0.4 |
| 20 | 80.2 ± 0.9 | 9.3 ± 0.9 | 10.5 ± 1.5 | 5.3 ± 0.4 |
| 60 | 76.3 ± 0.9 | 4.6 ± 0.4 | 19.1 ± 1.1 | 5.8 ± 0.5 |
| 90 | 76.3 ± 1.5 | 3.1 ± 0.6 | 20.6 ± 1.0 | 4.5 ± 1.2 |
| 120 | 75.9 ± 0.8 | 3.1 ± 1.1 | 21.0 ± 0.6 | 4.6 ± 0.5 |
| 240 | 78.5 ± 1.1 | 2.2 ± 0.6 | 19.3 ± 1.0 | 3.6 ± 0.8 |
| 360 | 81.1 ± 1.1 | 1.5 ± 0.5 | 17.4 ± 0.9 | 3.4 ± 0.4 |