Table 2.
Textural properties of the powders (SBET, VP and DP) obtained by N2 adsorption. Interplanar d10 spacing, obtained by X-ray diffraction (XRD), and calculated unit cell parameters (ao). Composition in oxides of each MBG was determined by EDS, including the intended nominal values in brackets. The error of mean values represents a coefficient of variation of <7% for each experimental value in the table.
| Sample | Powders | Atomic Composition wt.% (EDS) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| SBET (m2/g) | VP (cm3/g) | DP (nm) | d10 (nm) |
ao | SiO2 | CaO | P2O5 | SrO | |
| 0Sr-MBG | 307 | 0.42 | 7.03 | 9.6 | 11.1 | 87.4 (85) |
9.8 (10) |
2.8 (5) |
- |
| 2.5Sr-MBG | 185 | 0.24 | 6.16 | 9.2 | 10.6 | 82.7 (82.5) |
6.1 (10) |
8.3 (5) |
2.9 (2.5) |
| 5Sr-MBG | 141 | 0.19 | 5.72 | 9.2 | 10.6 | 85.5 (80) |
5.2 (10) |
5.6 (5) |
3.7 (5) |