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The crystal structure parameters of GQDs, C3N4, and GQDs/g-C3N4.
| Sample name | (hkl) | d-spacing | βD (°) | D (Scherrer eq.) (nm) | δ (nm2) | ε |
|---|---|---|---|---|---|---|
| GQDs | (111) | 8.06 | 0.0268 | 5.2 | 0.037221 | 0.069432 |
| g-C3N4 | (002) | 3.24 | 0.0283 | – | 0.039455 | 0.028885 |
| GQDs/C3N4 | (002) | 3.25 | 0.0445 | – | 0.084571 | 0.023732 |
