In this work, nanosized MoP was synthetized in a novel phosphorization process at a relatively low temperature under an ambient-air atmosphere and then assembled with g-C₃N₄ to form MoP/g-C₃N₄ coupled photocatalyst by a mixing and heat-treating method. Significantly, the obtained noble-metal-free MoP/g-C₃N₄ photocatalyst showed superior photocatalytic H₂-production activity and excellent stability than most reported noble-metal-free cocatalysts modified g-C₃N₄. The optimal MoP/g-C₃N₄ photocatalyst possessed a H₂-production activity of 3868 μmol h^-1 g_cat^-1 and the corresponding AQY reached 21.6% at 405 nm. The incorporation of nanosized MoP into g-C₃N₄ could broaden the absorption range of visible light, built a conducive highway (Mo(δ⁺)−N(δ⁻) bond) for electrons to transfer from g-C₃N₄ to MoP, which improved the separation and transportation efficiency of charge carriers, and reduce the energy barrier for hydrogen evolution reaction. This work provided a reliable guideline for designing novel and simple synthetic method for cocatalyst and then constructing cocatalyst/photocatalyst coupled structure.

在这项工作中，在一种新颖的磷化工艺中，在相对较低的温度和环境空气气氛下合成了纳米MoP，然后与gC ₃ N ₄组装在一起，通过混合和热处理方法形成MoP / gC ₃ N ₄偶联光催化剂。 。重要的是，与大多数报道的无贵金属助催化剂改性的gC ₃ N ₄相比，所获得的无贵金属的MoP / gC ₃ N ₄光催化剂显示出优异的光催化H _2产生活性和优异的稳定性。最佳的MoP / gC ₃ N ₄光催化剂具有H ₂3868μmolh ^-1 g _cat ^-1的生成活性和相应的AQY在405 nm处达到21.6％。纳米尺寸的MoP进入GC的掺入₃ Ñ ₄可以扩大可见光的吸收范围，内置有利于公路（钼（δ ⁺）-N（δ ^- ）键），用于电子传输从GC ₃ Ñ ₄拖把，其提高了载流子的分离和运输效率，降低了析氢反应的能垒。这项工作为设计新颖，简单的助催化剂合成方法，然后构建助催化剂/光催化剂偶联结构提供了可靠的指导。