Application of Multidimensional Covalent Organic Frameworks for Enhanced CO 2 Adsorption

Anthropogenic activitieshave elevated the concentration of atmospheric CO2 substantially. This increase has eventually participated to change in climate and global warming. The 1.1% increased of global CO2 emissions observed in 2023 by reaching a total of 37.4 Gt. Many adsorbents materials were used in previous research but covalent organic frameworks (COFs) have shown significant potential. They are formed by chemically linking organic building blocks into a periodic framework, resulting in an ordered porous crystalline structure with high gas adsorption and retention capacity. COFs possess unique architecture, excellent crystallinity, high surface area, and high porosity which are the ideal condition for a good adsorbents. This review deeplyexplored the application of multidimensional (1-D, 2-D, and 3-D) COFs frameworks for CO2 adsorption. The CO2 adsorption capacity of each dimensional class of COFs has been investigated in detail. This review also provides recent research and future direction in this particular field.