Research Article
Determination of Optimum Conditions for the Production of Activated Carbon Derived from Separate Varieties of Coconut Shells
Table 4
Effect of activating agent concentration on activated carbon yield.
| | Samples | H3PO4 concentration (M) | Tall tree variety yield (%) (A1–A4) at 575°C | Dwarf tree variety yield (%) (A1–A4) at 575°C |
| | , | 0.30 | 22.4 | 26.3 | | ,— | 0.50 | 24.1 | — | | , | 0.67 | 32.8 | 34.0 | | , | 1.00 | 37.9 | 46.6 | | , | 1.33 | 32.3 | 40.1 |
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