How is Mesoporous Silica Functionalized for Catalysis?
Functionalization involves modifying the surface of mesoporous silica to introduce catalytic active sites or enhance its properties. This can be achieved through:
Grafting: Covalent attachment of organic or inorganic groups onto the silica surface. Impregnation: Incorporation of metal nanoparticles or complexes into the pores. Sol-Gel Coating: Coating the mesoporous structure with a thin layer of active material. Post-Synthetic Modification: Modifying the pore walls after the initial synthesis to introduce desired functionalities.