Mohan Brij, Asif Muhammad Bilal, Gupta Rakesh Kumar, Pombeiro Armando J L, Yavuz Cafer T, Ren Peng
School of Science, Harbin Institute of Technology, Shenzhen 518055, China; Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. RoviscoPais, 1049-001 Lisboa, Portugal.
Oxide & Organic Nanomaterials for Energy & Environment (ONE) Laboratory, Chemistry Program, Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia.
Adv Colloid Interface Sci. 2025 Aug;342:103507. doi: 10.1016/j.cis.2025.103507. Epub 2025 Apr 5.
Porous covalent organic frameworks (COFs) are promising materials used for separation and purification during environmental remediation. This critical review focuses on two key aspects. First, it critically examines strategies to improve COF design and structure and evaluates their impact on separation performance. Second, engineering approaches for enhancing the interactions between COF-based adsorbents and metals for enhanced separation and capture are elucidated. The latest body of research on separating metals (e.g., Li, K, Sr, Hg, Cd, Pb, Cr, Au, Ag, Pd, and U) using COF-based adsorbents is discussed to understand the factors that influence their performance. However, it is to be noted that COF-based adsorbents are still in their infancy and remain largley unexplored, mainly hindered by synthetic complexities and suboptimal crystalline structures. This highlights the need for further research and development to fully unlock the excellent potential of COFs for metal separation applications, particularly in environmental and energy applications.
多孔共价有机框架材料（COFs）是用于环境修复过程中分离和纯化的有前景的材料。这篇综述聚焦于两个关键方面。首先，批判性地审视改进COF设计和结构的策略，并评估其对分离性能的影响。其次，阐明增强基于COF的吸附剂与金属之间相互作用以实现增强分离和捕获的工程方法。讨论了使用基于COF的吸附剂分离金属（如锂、钾、锶、汞、镉、铅、铬、金、银、钯和铀）的最新研究成果，以了解影响其性能的因素。然而，需要注意的是，基于COF的吸附剂仍处于起步阶段且大部分尚未被探索，主要受到合成复杂性和不理想的晶体结构的阻碍。这凸显了进一步研究和开发的必要性，以充分释放COFs在金属分离应用中的巨大潜力，特别是在环境和能源应用中。
