Design and application of active sites in g-C3N4-based photocatalysts
Yang Lia,b, Xin Lic, Huaiwu Zhanga, Jiajie Fand, Quanjun Xianga,*()

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Fig. 4.. TEM images of (a-c) the sample obtained from the precursor calcined at 500℃ (DCN-550) and (d-f) the sample obtained from the precursor calcined at 500℃ (DCN-600) samples; (g) Schematic illustration for the synthetic process of nanocage-like carbon nitride; (h) Schematic diagram of the possible photocatalytic H2 mechanism for nanocage-like structured g-C3N4 [74].