With recent progresses made in modern nanoscience and nanotechnology, ordered mesoporous materials have been one of the hottest research topics in scientific community. Generally, two kinds of templates are used to produce the mesopores: supramolecular aggregates such as surfactant micelle arrays, and rigid preformed solids such as ordered mesoporous SiO2, C etc. Besides the templates, the interface also plays a central role in the synthetic process, because it provides a rich and crucial space for the assembly and construction of mesostructures. Generally, two kinds of interfaces involve in the synthetic system. The first one is interface between surfactant templates and guest species. Another important interface is the interaction among solid, liquid and gas objects, including liquid-solid, gas-liquid, liquid-liquid, gas-solid, and solid-solid interfaces. Here we present the development and progress of the syntheses of functional mesoporous nanospheres by using interfacial assembly strategy. The introduction of an interfacial assembly strategy can change the growth behaviors of mesoporous materials and result in the formation of molding or multifunctional mesoporous materials with multi-level architectures. A series of new synthesis approaches were developed based on the interfacial assembly strategy, including the liquid-liquid biphase synthesis, evaporation induced aggregation assembly (EIAA), anisotropic growth of mesoporous arrays, and interface driven orientation arrangement. Novel mesoporous nanomaterials with multi-level architectures can be well synthesized, such as symmetric core-shell, yolk-shell, multi-shell and asymmetric Janus, single-hole hollow etc. The obtained functional materials with uniform and controllable pore channels, high surface area, large pore volume and open frameworks, showing great potential applications on catalysis, adsorption, separation, and biomedicines.

Interfacial assembly and engineering of ordered functional mesoporous materials

253rd National Meeting (2017)

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