In this study, a novel Co₂P(8) nanosheet cocatalyst was successfully synthesized and used to modify Cd_0.5Zn_0.5S nanoparticles (Co₂P(8)-CZS) for noble-metal-free photocatalytic H₂ generation. The results showed CZS nanoparticles with dozens of nanometers loaded densely on Co₂P(8) nanosheets, which formed a huge number of 2D-0D heterointerfaces and provided numerous active sites. After the introduction of the Co₂P(8) nanosheet cocatalyst, the composites show a decreased recombination rate of the photoinduced carrier and overpotential for H⁺ reduction. Additionally, 13 wt% Co₂P(8)-CZS exhibited a high H₂ evolution of 68.02 mmol g⁻¹ h⁻¹, with a 30.1 % apparent quantum efficiency at 420 nm, which was approximately 103 times higher than that of bare CZS.

在这项研究中，成功地合成了一种新型的Co ₂ P（8）纳米片状助催化剂，并用于修饰Cd _0.5 Zn _0.5 S纳米粒子（Co ₂ P（8）-CZS）以产生无贵金属的光催化H ₂。结果表明，具有数十纳米的CZS纳米颗粒密集地负载在Co ₂ P（8）纳米片上，形成大量2D-0D异质界面并提供了许多活性位点。引入Co ₂ P（8）纳米片材助催化剂后，复合材料显示出降低的光诱导载体重组率和H ⁺还原的超电势。此外，13 wt％Co ₂ P（8）-CZS表现出高H_2的演化为68.02 mmol g ^-1  h ^-1，在420 nm处的表观量子效率为30.1％，约为裸CZS的103倍。