“…[9][10][11] Nevertheless, the practical applicability of CN is still restricted by its inherent bottlenecks of limited visible light harvesting and ultrafast recombination rate of photogenerated charge carriers. 12,13 To overcome the above-mentioned defects, considerable efforts have been devoted to boost the photocatalytic property of CN, including porous morphology formation, 14 heteroatom doping, 15 heterostructure construction, 16 aromatic ring integration 17 and dye sensitization. 18 Among these, embedding heteroaromatic molecules into the skeleton of CN has been conrmed to be an effective strategy, which resulted in an extended p-conjugated system and new localized internal eld formation, could expand the visible light response range and facilitate the separation and transportation of charges, leading to an increased photocatalytic efficiency.…”