Porous layered montmorillonite confinement cobalt oxide catalyst as well as preparation method and application thereof

The invention discloses a porous layered montmorillonite confinement cobalt oxide catalyst as well as a preparation method and application thereof. The catalyst comprises porous layered montmorillonite and cobalt oxide nanoparticles fixed in an interlayer domain structure of the porous layered montmorillonite. The preparation method of the catalyst comprises the following steps: dipping natural montmorillonite powder in a solution containing Co < 2 + >, and calcining the obtained layered montmorillonite with cobalt ions adsorbed between layers at the temperature of not more than 500 DEG C to obtain the porous layered montmorillonite confinement cobalt oxide catalyst. The porous layered montmorillonite confinement cobalt oxide catalyst has the advantages of large specific surface area, rich active sites, stable mechanical structure, reduced metal leaching, excellent catalytic activity and the like, is a novel heterogeneous Fenton catalyst which is excellent in performance and can be widely used, can be used fo