College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China.
College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou, 450002, PR China.
Chemosphere. 2022 Mar;291(Pt 1):132795. doi: 10.1016/j.chemosphere.2021.132795. Epub 2021 Nov 5.
Covalent organic frameworks (COFs) with 2D or 3D networks are a class of novel porous crystalline materials, and have attracted more and more attention in the field of gas purification owing to their attractive physicochemical properties, such as high surface area, adjustable functionality and structure, low density, and high stability. However, few systematic reviews about the application statuses of COFs in gas purification are available, especially about non-CO harmful gases. In this review, the recent progress of COFs about the capture, catalysis, and detection of common harmful gases (such as CO, NO, SO, HS, NH and volatile pollutants) were comprehensively discussed. The design strategies of COF functional materials from porosity adjustment to surface functionalization (including bottom-up approach, post-synthetic approach, and blending with other materials) for certain application were summarized in detail. Furthermore, the faced challenges and future research directions of COFs in the harmful gas treatment were clearly proposed to inspire the development of COFs.
共价有机框架（COFs）具有 2D 或 3D 网络，是一类新型的多孔结晶材料，由于其具有吸引人的物理化学性质，如高比表面积、可调功能和结构、低密度和高稳定性，在气体净化领域引起了越来越多的关注。然而，关于 COFs 在气体净化中的应用现状，特别是关于非 CO 有害气体的应用现状，很少有系统的综述。在这篇综述中，全面讨论了 COFs 在常见有害气体（如 CO、NO、SO、HS、NH 和挥发性污染物）的捕集、催化和检测方面的最新进展。详细总结了从孔隙度调整到表面功能化的 COF 功能材料的设计策略（包括自下而上的方法、后合成方法和与其他材料的混合），以满足某些应用的需要。此外，还明确提出了 COFs 在有害气体处理方面面临的挑战和未来的研究方向，以激发 COFs 的发展。
