Metal–Organic Frameworks (MOFs) with Hierarchical Structures for Visible Light Photocatalysis

Metal–organic frameworks (MOFs) are a class of organic–inorganic hybrid materials, which form by combining organic linkers and inorganic metal nodes through coordination interaction. The versatile properties, including high porosity, surface area, and tunable structure, encourage their uses in solar energy conversion applications. The organic linkers are responsible for visible light absorption due to the ligand to metal charge transition (LMCT) process, facilitating the enhanced photocatalytic activity. In addition to that, the hierarchical structures of MOFs also play significant roles in visible light photocatalytic activity. MOFs with hierarchical structures can enhance the active surface area and reactive sites, which are vital roles for efficient photocatalysis. This chapter discusses the preparations of hierarchical structured MOFs and their applications in visible light photocatalysis.