Water pollution and energy crises are major problems for the sustainability of the modern world. Solar energy–driven photocatalysis technique is a promising environmental remediation approach. Multivariate metal-organic frameworks (MTV-MOFs) have recently emerged as an exciting class of crystalline materials with flexible tunability in porous structure and composition, rich topology, enhanced surface area, and broad visible-light absorption. The modularity of MOFs can be achieved by altering metal clusters and carbon-containing organic linkers in orderly repeating two- or three-dimensional arrangement. This review presents a discussion on recent advances in MTV-MOFs–based photocatalysis targeted for pollutant degradation, CO₂ reduction, and water splitting. The advantages of MTV-MOFs for diverse photocatalytic applications include structural modulation, functionalized adjustability, and synthesis selectivity of mixed-linker/metal (ML/MM) coordinative bonds. The synthesis methodologies, that is, one-step and postsynthetic routes, have been elaborated for ML/MM MOFs to obtain improved photocatalytic activity. The photocatalytic mechanism, followed by MTV-MOFs heterostructures with metal oxides or carbonaceous semiconductors, was discussed in detail. The discussion is concentrated on structural and topological features via self-assemble of linkers and metal ions in ML/MM MOFs. The future research area should select suitable metal ions/linkers, rational synthesis, and appropriate photocatalytic mechanism of orderly MTV-MOFs.

水污染和能源危机是现代世界可持续发展的主要问题。太阳能驱动的光催化技术是一种有前途的环境修复方法。多元金属有机框架（MTV-MOF）最近成为令人兴奋的一类晶体材料，在多孔结构和组成，丰富的拓扑结构，增加的表面积和广泛的可见光吸收方面具有灵活的可调性。MOF的模块性可以通过改变金属簇和含碳有机连接基以有序重复二维或三维排列的方式实现。这篇综述对针对污染物降解，CO ₂的基于MTV-MOFs的光催化的最新进展进行了讨论。减少和水分解。MTV-MOF在多种光催化应用中的优势包括结构调节，功能化的可调节性以及混合连接基/金属（ML / MM）配位键的合成选择性。ML / MM MOFs的合成方法，即一步法和合成后路线已得到完善，以提高光催化活性。详细讨论了光催化机理，接着讨论了MTV-MOF与金属氧化物或碳质半导体的异质结构。讨论集中在通过ML / MM MOF中连接子和金属离子的自组装实现的结构和拓扑特征上。未来的研究领域应选择合适的金属离子/连接基，合理的合成方法以及适当的有序MTV-MOFs光催化机理。