Amine linkers are functional groups containing nitrogen atoms that are commonly used to construct covalent organic frameworks (COFs) via covalent bonding. These linkers have high stability and chemical resistance, making COFs containing amine linkers suitable for a wide range of applications. Amine linkers can participate in hydrogen bonding and other intermolecular interactions, contributing to the mechanical strength and porosity of the COF. Applications of COFs with amine linkers include gas separation, catalysis, and energy storage, where their well-defined structures and properties are advantageous. The versatility of amine linkers allows the synthesis of COFs with customized pore size, shape, and functionality, enabling precise control of material properties.