Preparation of Covalent Organic Framework Membranes and Their Applications in Seawater Desalination and Water Treatment

The increasing shortage of freshwater resources and water pollution are important challenges facing the world, and vigorous development of seawater desalination and water treatment technologies is an effective way to alleviate this problem. In recent years, low energy consumption and green membrane-separation technology has been widely used in the fields of seawater desalination and water treatment. Covalent organic framework (COF) membranes are potential high-performance membrane separation materials due to their adjustable pore size and chemical environment. In this paper, the research progress of COF-membranes synthesis methodology is introduced in detail, the research of COF membranes in seawater desalination and water treatment is summarized, and the challenges and perspectives of COF membranes for seawater desalination and treatment are elaborated.