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EDX elemental analysis results of the unmodified (Kao and Kao-Na) and modified kaolinite (Kao-CTMA).
| Sample code | Element | Range of weight (%) | Average weight (%) |
|---|---|---|---|
| ABK-1 (Kao) | Aluminium | 14.5–21.9 | 17.2 |
| Silicon | 78.1–85.5 | 82.8 | |
| ABK-2 (Kao-Na) | Sodium | 0.0–0.5 | 0.16 |
| Aluminium | 14.3–15.7 | 15.1 | |
| Silicon | 84.3–85.7 | 84.74 | |
| ABK-3 (Kao-CTMA) | Aluminium | 15.6–17.5 | 16.55 |
| Silicon | 81.9–84.4 | 83.13 | |
| Copper | 0–1.3 | 0.32 |
