It was the constant pursuit of researchers to explore catalysts with higher catalytic activity, and the use of co-catalysts to modify the performance of photocatalytic materials had a significant effect on charge separation. In this paper, the non-precious metal NiS-modified ZnCo₂O₄ composite catalytic material prepared by hydrothermal method had high-efficiency catalytic performance. When the weight ratio of NiS to ZnCo₂O₄ was 12%, the optimal catalytic activity is 3.57 mmol g⁻¹ h⁻¹, which was more than twice that of ZnCo₂O₄. The presence of NiS not only improved the specific surface area of the catalyst and its ability to respond to light, but the close interface formed by the combination of the two monomer phases accelerated the transfer and the utilization of the photocharge on ZnCo₂O₄ to NiS, thereby promoting the separation of electron holes and improving the photocatalytic activity of the catalyst. According to the research results, the mechanism of hydrogen production in the photocatalytic system was revealed. In this paper, NiS was used to modify the bimetallic oxide with cubic appearance, which provided a new strategy for the development of new photocatalysts.

研究具有更高催化活性的催化剂是研究人员一直追求的目标，而使用助催化剂改变光催化材料的性能对电荷分离具有重要影响。本文采用水热法制备的非贵金属NiS改性ZnCo ₂ O ₄复合催化材料具有高效的催化性能。当NiS与ZnCo ₂ O ₄的重量比为12％时，最佳催化活性为3.57 mmol g ^-1  h ^-1，是ZnCo ₂ O _4的两倍以上。。硫化镍的存在不仅改善了催化剂的比表面积和其能力以响应光，但由两个单体相的组合形成的紧密界面加速了传输和光电荷对碳酸锌利用率₂ Ò ₄至NiS，从而促进电子空穴的分离并提高催化剂的光催化活性。根据研究结果，揭示了光催化体系中制氢的机理。本文采用NiS对立方晶双金属氧化物进行改性，为开发新型光催化剂提供了新的策略。