Hierarchically Porous SIFSIX‐3‐Ni/PAN Composite Beads for Carbon Dioxide Adsorption

Abstract The increase in CO 2 concentration in the atmosphere has led to global warming, which draws great attention all over the world. Adsorption is considered as an effective method for CO 2 capture and stabilizing the increasing CO 2 concentration. Metal–organic frameworks (MOFs) are promising materials for carbon capture. However, the direct use of MOF powders may lead to issues such as high pressure drop, pipe clogging, and handling difficulties in applications. Herein, a phase inversion strategy is reported to prepare SIFSIX‐3‐Ni@PAN composite beads. The prepared composites exhibit hierarchically porous structure with uniform MOF distribution inside the materials and good mechanical stability. The MOF content can be well controlled and composites with up to 70% loading are prepared. Finally, the obtained materials possess high CO 2 capture capacity, even at low CO 2 concentrations (1.19 mmol g −1 at 0.01 bar and 298 K).