Post-synthetic modifications of MOF-74 type frameworks for enhancing CO₂ capture and moisture stability

Anthropogenic carbon dioxide (CO₂) emissions pose a significant threat to the delicate balance between human society and the natural environment. Carbon capture and sequestration is a technology designed to selectively capture CO₂ emissions generated from power plants and industrial facilities, preventing them from entering the atmosphere. Diamine-modified metal–organic frameworks (MOFs) show promising capabilities in achieving remarkable CO₂ capacities, highlighting their potential for effective CO₂ capture applications. Herein, using MOF-74 type frameworks, we discussed our various methodologies designed to enhance the CO₂ adsorption capacity, while also tackling the issue of maintaining structural integrity over prolonged periods, especially in humid environments. The challenges and prospects for CO₂ capture by diamine-functionalized hydrophobic MOFs are highlighted.