Effect of Precursors of Mesoporous Silica on the Adsorption Properties of a Ceramic Material

摘要

Nitrogen low-temperature adsorption–desorption is employed to investigate the adsorption and textural properties of a ceramic material coated with silica, which is produced by the sol–gel method from oxide and alkoxide precursors. It is shown that a mesoporous silica coating with a thickness of ≈300–400 nm and a denser layer with a thickness of 13–34 nm are formed from deionized silica sol and hydrolyzed tetraethoxysilane, respectively.