Table 1.
Three-factor and three-level of orthogonal experimental
| Level | Factor | ||
| A (solid-liquid ratio, g/mL) |
B (irradiation power, W) | C (irradiation time, min) | |
| 1 | 1:35 | 320 | 8 |
| 2 | 1:40 | 480 | 10 |
| 3 | 1:45 | 640 | 12 |
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