共价有机框架材料(Covalent Organic Frameworks, COFs)是一类由纯有机小分子通过动态共价化学自组装而成的晶型多孔材料，因其密度小、比表面积大、结构可控及易于功能化等特点，在吸附、催化、光电、传感等领域中有很好的应用价值，并且该材料在污染物去除领域受到了广泛的关注，近些年来成功在水处理方面展开应用，包括去除水中有机污染物和重金属，相对于有机物，重金属危害大、毒性强且难以降解，有机框架材料则在吸附去除重金属方面表现出巨大的潜力。下文通过总结最近几年COFs、COFs复合材料在去除重金属离子方面的研究进展，并对其应用前景做出展望。
Covalent Organic Frameworks (Covalent Organic Frameworks, COFs) are a type of crystalline porous materials self-assembled by pure organic small molecules through dynamic covalent chemistry. Due to their low density, large specific surface area, controllable structure and easy function and other characteristics, it has good application value in the fields of adsorption, catalysis, opto-electronics, sensing, etc., and the material has received extensive attention in the field of pollutant removal. In recent years, it has been successfully applied in water treatment, including removal compared with organic matter, organic pollutants and heavy metals in water are more harmful, toxic, and difficult to degrade. Organic framework materials show great potential for the removal of heavy metals. The following is a summary of the research progress of COFs and COFs composites in removing heavy metal ions in recent years, and prospects for their application prospects.