Co2P Nanorods as an Efficient Cocatalyst Decorated Porous g‐C3N4 Nanosheets for Photocatalytic Hydrogen Production under Visible Light Irradiation

Graphitic carbon nitride (g‐C3N4), which typically acts as the 2D support for loading with cocatalysts, endows fascinating performances for photocatalytic water splitting. Benefiting from the natural sheet‐like structure in g‐C3N4, 1D metal phosphides (Co2P) nanorods are incorporated into 2D porous g‐C3N4 nanosheets via a solution‐phase method under ultrasonication. The novel 1D/2D Co2P/g‐C3N4 heterojunction nanohybrids exhibit ameliorated visible‐light photocatalytic H2 generation without the assistance of Pt as noble metal cocatalysts. Interestingly, the optimal loading of Co2P nanorods is 3 wt%, giving a maximum H2 production rate of 53.3 µmol h−1 g−1. Hence, the solution‐phase hybridization technique can be extensively applied for the smart engineering of other 1D and 2D nanomaterials, leading to unprecedented opportunities on the highly efficient heterojunction photocatalysts for solar‐to‐H2 conversion. 1D Co2P nanorods are incorporated into 2D porous g‐C3N4 nanosheets through a facile solution‐phase approach under ultrasonication. The novel 1D/2D Co2P/g‐C3N4 heterojunction nanohybrids exhibit ameliorated visible‐light photocatalytic H2 generation without the assistance of Pt as noble metal cocatalysts. The optimal Co2P nanorods loading is determined to be 3 wt%, giving a maximum H2 production rate of 53.3 µmol h−1 g−1.