Table 2.
Compositional analysis of high resolution XPS peaks.
| TiO2 (Figure 3) | TiO2 + ALN (Figure 4) | TiO2 + BSA (Figure 5) | TiO2 + ALN + BSA (Figure 6) | |
|---|---|---|---|---|
| Ti 2p | ||||
| O 1s | TiO2 – 77.89% TiO – 5.02% O–H – 17.09% |
OH/P–O – 52.71% Ti–O – 47.29% |
OH – 61.52% Ti–O – 38.48% |
OH – 58.12% Ti–O – 41.88% |
| C 1s | C–N – 33.13% C–OH – 58.92% C – 7.95% |
C–C – 45.34% COOH – 16.50% C–N – 38.16% |
C–N – 50.34% COOH – 23.41% C – 26.24% |
|
| N 1s | NH3 – 72.09% C–N – 27.91% |
C–N – 85.05% NH3 – 14.95% |
NH3 – 34.30% N – 63.70% |
|
| P 2p | 2p3/2–73.87% 2p1/2–26.13% |
2p3/2–65.76% 2p1/2–26.35% Na3PO4 – 7.89% |
||