A novel and highly efficient earth-abundant Cu3P with TiO2 "P-N" heterojunction nanophotocatalyst for hydrogen evolution from water

作者：Yue, Xinzheng; Yi, Shasha; Wang, Runwei; Zhang, Zongtao^*; Qiu, Shilun

来源：Nanoscale, 2016, 8(40): 17516-17523.

DOI：10.1039/c6nr06620h

• PHOTOCATALYTIC H-2 EVOLUTION
• VISIBLE-LIGHT IRRADIATION
• COPPER PHOSPHIDE
• NANOSHEETS
• GRAPHENE
• MOS2
• NANOPARTICLES
• DEGRADATION
• COCATALYSTS
• NANOWIRES

Semiconductor-based photocatalytic hydrogen (H-2) 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-Cu3P coupled with n-TiO2 forms a novel hybrid structure which accelerates electron-hole pair separation and transfer for improved photocatalytic H-2-evolution activity. The rate of H-2 evolution of the optimized Cu3P/TiO2 (7940 mu mol h(-1) g(-1)) is 11 times higher than that of bare TiO2, 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-2-evolution activity and sufficient stability for solar-to-chemical conversion and utilization.

• 出版日期2016
• 单位吉林大学; 无机合成与制备化学国家重点实验室