A strategy to construct uniform MOFs/PAN nanowire derived bead-like Co₃O₄ for VOC catalytic combustion

This study for the first time proposed two kinds of chemical modification approaches to promote the uniform and stable growth of MOFs on PAN nanowires. Acid hydrolysis was performed to form some carboxylic acid groups on the surface of PAN nanowires, and an ammonia process was used to enhance the coordination ability of PAN with metal ions. Through the modulation of the coordination environments, ZIF/H-PAN and ZIF/NH-PAN showed big differences in morphology and chemical properties. The bead-like dodecahedron H-Co₃O₄ catalyst derived from the bead-like ZIF/H-PAN showed excellent activity for the catalytic combustion of VOCs.