Table 3 Band assignments for the peaks obtained for all samples (cf. Fig. 4).
Wave number (cm−1) | Band assignment | Wave number (cm−1) | Band assignment |
---|---|---|---|
465 | δ (Si-O-Si) bending | 1630 | δ (OH) |
595 | P-O of PO32− group | 2853 | −OH (water) |
784 | ν (Si-O-Si) tetrahedral | 2923 | ν (CH) |
1020 | ν (Si-O-Si) asymmetric | 3445 | ν (OH) |