(293b) Interfacial Oriented Assembly of Hierarchical-Pore Functional Mesoporous Materials from Monomicelles

Functional mesoporous materials are a class of porous solids with pore size of 2-50 nm. They not only possess unique properties such as a high specific surface area, a large pore size and volume, and pore uniformity control, but also have excellent optical, electrical and magnetic properties of inorganic functional nanoparticles. Therefore, multilevel functional mesoporous materials have broad application prospects in many fields such as catalysis, adsorption, separation and biomedicine. In this paper, we mainly review the recent advances in the synthesis of multilevel functional mesoporous materials by oriented assembly controlled by interfacial assembly of surfactant monomicelles. Based on the core idea of interface assembly regulation, we developed a series of new methods for the synthesis of multilevel structural and functional mesoporous materials, including confined micro-emulsion confinement self-assembly, liquid-liquid bi-phase synthesis, evaporation-driven oriented/aggregation assembly, anisotropic growth method, interface driven orientation arrangement, interfacial dynamic migration strategy etc. By using these new synthesis approaches, a family of novel mesoporous nanomaterials with one-level and multi-level architectures can be nationally designed and well synthesized, such as core-shell, yolk-shell, multi-shell, 2D film structures for silica, TiO₂, carbon spheres, 3D mesoporous bouquet-posy-like TiO₂ multi-level superstructures and asymmetric Janus, single-hole hollow structure, nano-thermometer, multipods nanostructure, hemispheres, streamlined nanotadpoles etc.. These novel mesoporous materials not only have unique and uniform morphology, but also have controllable mesoscopic pore structure, high specific surface area, large pore volume and open pore. It is because of their unique structure and function that these materials show a very good application prospect in biomedicine and other fields.