Abstract
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The shape of the mesoporous silica particles is rich and colorful. It has long been believed that the macroscopic structure of mesoporous silica particles is formed by continuously building microstructural units and growing them step by step. However, in this work, it is found that the growth process of mesoporous silica particles is not linear but stepped. The mesoporous silica particles grow up by repeating the process of “rapid construction of framework structure first and then slow construction of fine structure”. The size of the mesoporous silica particles only grows stepwise when constructing the framework structure, but remains almost unchanged during subsequent fine structure construction. During the growth of the mesoporous silica particles, about one-sixth of the time is used to construct the framework structure, and the rest of the time is spent on the construction of fine structure.