共价有机骨架(COF)是一类基于不同结构单元之间的共价键合成的新兴材料。COF在高孔隙率方面具有独特的属性,可调结构,有序频道,易于修改,大表面积,和良好的物理和化学稳定性。由于这些特点,COF已被广泛用作各种萃取模式的吸附剂。改进的COF可以达到增强的提取性能,其中COF表示为与包括纳米材料在内的其他材料的复合材料,碳及其衍生物,二氧化硅,金属有机框架,分子印迹聚合物,等。这篇综述文章描述了最近的进展,事态发展,以及COF基材料在提取方法中用作吸附剂的应用。COFs,他们的属性,综述了它们的合成方法及其复合结构。最重要的是,还讨论了通过基于COF的材料提取分析物的建议机制。最后,总结并考虑了COF基材料在提取方法中的当前挑战和未来前景,以便为该领域提供更多见解。
Covalent organic frameworks (COFs) are a class of emerging materials that are synthesized based on the covalent bonds between different building blocks. COFs possess unique attributes in terms of high porosity, tunable structure, ordered channels, easy modification, large surface area, and great physical and chemical stability. Due to these features, COFs have been extensively applied as adsorbents in various extraction modes. Enhanced extraction performance could be reached with modified COFs, where COFs are presented as composites with other materials including nanomaterials, carbon and its derivatives, silica, metal-organic frameworks, molecularly imprinted polymers, etc. This review article describes the recent advances, developments, and applications of COF-based materials being utilized as adsorbents in the extraction methods. The COFs, their properties, their synthesis approaches as well as their composite structures are reviewed. Most importantly, suggested mechanisms for the extraction of analyte(s) by COF-based materials are also discussed. Finally, the current challenges and future prospects of COF-based materials in extraction methods are summarized and considered in order to provide more insights into this field.