Single‐site photocatalysts generally display excellent photocatalytic activity and considerably high stability compared with homogeneous catalytic systems. A rational structural design of single‐site photocatalysts with isolated, uniform, and spatially separated active sites in a given solid is of prime importance to achieve high photocatalytic activity. Intense attention has been focused on the design and fabrication of single‐site photocatalysts by using porous materials as a platform. Metal–organic frameworks (MOFs) have great potential in the design and fabrication of single‐site photocatalysts due to their remarkable porosity, ultrahigh surface area, extraordinary tailorability, and significant diversity. MOFs can provide an abundant number of binding sites to anchor active sites, which results in a significant enhancement in photocatalytic performance. In this focus review, the development of single‐site MOF photocatalysts that perform important and challenging chemical redox reactions, such as photocatalytic H₂ production, photocatalytic CO₂ conversion, and organic transformations, is summarized thoroughly. Successful strategies for the construction of single‐site MOF photocatalysts are summarized and major challenges in their practical applications are noted.

中文翻译：

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以金属有机骨架为基质设计单点光催化剂

与均相催化体系相比，单中心光催化剂通常显示出出色的光催化活性和相当高的稳定性。在给定的固体中具有孤立，均匀和空间分隔的活性位的单中心光催化剂的合理结构设计对于实现高光催化活性至关重要。通过使用多孔材料作为平台，强烈的注意力集中在单中心光催化剂的设计和制造上。金属有机框架（MOF）具有出色的孔隙率，超高表面积，非凡的可定制性和显着的多样性，在单中心光催化剂的设计和制造中具有巨大的潜力。MOF可以提供大量的结合位点来锚定活性位点，从而大大提高了光催化性能。在此重点综述中，开发可进行重要且具有挑战性的化学氧化还原反应（例如光催化H）的单中心MOF光催化剂彻底总结了_2的生产，光催化的CO ₂转化和有机转化。总结了构建单中心MOF光催化剂的成功策略，并指出了其实际应用中的主要挑战。