Process for preparing silicon dioxide hollow ball material with hexagonal phase penetrating mesopore orbit

Abstract

A process for preparing the hollow balls of hexagonal-phase meso-porous SiO2 includes such steps as dissolving cosurfactant and surfactant in deionized water, regulating pH value by NaOH, adding Si source, stirring, ageing, filtering, washing, drying and heat treating.

Description

technical field [0001] The invention relates to a method for preparing a silica hollow sphere material with hexagonal phase penetrating mesoporous channels, and belongs to the field of inorganic mesoporous materials. technical background [0002] In 1992, researchers from Mobil Corporation of the United States first reported the M41S series of mesoporous materials with high specific surface area and high degree of order in Nature. Extensive research. Generally, the structure and morphology of materials have an important impact on their applications. The shell has a hollow sphere structure that runs through the mesoporous channels, which can not only greatly increase the loading capacity of guest molecules, but also facilitate the internal and external transport of guest molecules. Therefore, such mesoporous hollow spheres have broader application prospects as catalysts and carrier materials for drug delivery systems. [0003] At present, the preparation methods of silica ...

AI Technical Summary

Problems solved by technology

This method is simple in process, and the hollow core / mesoporous shell structure can be obtained in one step. However, the mesoporous channels of the mesoporous shell of this material are parallel to the latitude direction, so that the guest molecules cannot be transported inside and outside.

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