Research Article
Hydrothermal Synthesis of High Crystalline Silicalite from Rice Husk Ash
Table 2
Mole ratios of gel compositions for silicalite synthesis.
| | Synthesized silicalite (SL) | Silica source | SiO2 | NaOH/SiO2 | H2O/NaOH | SiO2/TPABr | Reaction time (hours) | Relative crystallinity (%) |
| | SL1 | RHA | 1 | 0.24 | 309 | 60 | 24 | 43 | | SL2 | RHA | 1 | 0.24 | 309 | 30 | 24 | 90 | | SL3 | RHA | 1 | 0.24 | 618 | 30 | 12 | 67 | | SL4 | RHA | 1 | 0.24 | 155 | 30 | 12 | 95 | | SL5 | RHA | 1 | 0.48 | 155 | 30 | 12 | 69 | | SL6 | RHA | 1 | 0.24 | 155 | 30 | 6 | 98 | | SL7 | SG | 1 | 0.24 | 155 | 30 | 6 | 100 |
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