Figure 1.
Calculated HOMO–LUMO gap vs g-C3N4 structures with varying sizes. Insets show the optimized configurations of (a) g-C3N4-1; (b) g-C3N4-3; (c) g-C3N4-6; and (d) g-C3N4-10. Brown, blue, and pink spheres represent C, N, and H, respectively.
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