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A novel and highly efficient earth-abundant Cu<sub>3</sub>P with TiO<sub>2</sub>“P–N” heterojunction nanophotocatalyst for hydrogen evolution from water
116
Citations
40
References
2016
Year
Semiconductor-based photocatalytic hydrogen (H<sub>2</sub>) evolution from water is of great importance for solar-to-chemical conversion processes to boost and promote the future hydrogen economy. Here, for the first time, we demonstrate that p-Cu<sub>3</sub>P coupled with n-TiO<sub>2</sub> forms a novel hybrid structure which accelerates electron-hole pair separation and transfer for improved photocatalytic H<sub>2</sub>-evolution activity. The rate of H<sub>2</sub> evolution of the optimized Cu<sub>3</sub>P/TiO<sub>2</sub> (7940 μmol h<sup>-1</sup> g<sup>-1</sup>) is 11 times higher than that of bare TiO<sub>2</sub>, with an apparent quantum efficiency (AQE) of 4.6%. This work may provide more insight into the synthesis of novel phosphide-based hybrid materials with high photocatalytic H<sub>2</sub>-evolution activity and sufficient stability for solar-to-chemical conversion and utilization.
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