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Reaction stoichiometry for the produced MSNs.
| Sample | Molar Ratio of Reactants |
|---|---|
| Si-NP | 1 TEOS/0.13 CTAB/0.4 NaOH/1240 H2O |
| SiCa-NP | 0.6 TEOS/0.13 CTAB/0.4 NaOH/1240 H2O/0.4 Ca |
| SiCaCe1-NP | 0.6 TEOS/0.13 CTAB/0.4 NaOH/1240 H2O/0.39 Ca/0.01 Ce |
| SiCaCe2.5-NP | 0.6 TEOS/0.13 CTAB/0.4 NaOH/1240 H2O/0.375 Ca/0.025 Ce |
| SiCaCe5-NP | 0.6 TEOS/0.13 CTAB/0.4 NaOH/1240 H2O/0.35 Ca/0.05 Ce |
