Leveraging cutting-edge in-house polymer graft modification, and encapsulation technology, HKUST has developed multi-functional green coating materials with high photocatalytic performance, anti-reflection and durability for various glazing surfaces, including PV panel, curtain wall, automobile rearview mirror. Notably its application on PV panel can enhance power generation by 15-20%. In contrast to commercial coating, this technology enables the nanocoating to have a unique inorganic micro-nano hierarchical porous structure inside, while maintaining high transparency and promoting superior photocatalysis under visible light radiation. In addition to glazing surfaces, this coating also can be applied to various building cement or metal surfaces.