(1. School of Science, Beijing Jiaotong University, Beijing 100044, China) (2. State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Science Research, Beijing 100041, China)
Solar photocatalytic decomposition of water is one of the important ways to achieve green and efficient production of sustainable energy hydrogen, while the design and development of photocatalysts play a key role in this process. Currently, the main challenges of conventional semiconductor photocatalysts include insufficient sunlight utilization, rapid carrier recombination, and insufficient exposure of active sites. Therefore, the research on new and efficient photocatalysts is particularly important. Metal-organic frameworks (MOFs) with semiconductor-like behavior have received more and more attention in the field of photocatalytic hydrogen production in recent years due to their ultra-high specific surface area, porosity and high regularity. This article introduced the structural characteristics of MOFs materials and their unique advantages in the field of photocatalytic hydrogen production. Based on the mechanism of photocatalysis, strategies for improving the photocatalytic activity of MOF-based photocatalysts were summarized in terms of improving light absorption, promoting charge separation and accelerating surface reactions. Besides, their application prospects were prospected.