Highly Stable and Reusable Multimodal Zeolite TS-1 Based Catalysts with Hierarchically Interconnected Three-Level MIcro-Meso-Macroporous Structure

摘要

Microporous titanosilicates, such as TS-1, are a class of important catalysts with high activities and selectivities coupled with environmentally benign catalytic performance, and play a vital role in a series of catalytic oxidation reactions with H2O2. However, an important drawback of these titanosilicate catalysts is that their pores are too small to be accessed by bulky reactants, and this hinders their use in the fine-chemical and pharmaceutical industries. Nanosized TS-1 materials were initially considered as a potential approach to improving the accessibility of such catalysts because, owing to their larger external surface areas, they have more active sites than conventional zeolites.