气-液界面有序介孔SiO_2无机膜的仿生合成

Biomimetic Synthesis of Ordered Mesoporous Silica Inorganic Films at the Air-solution Interface

Ordered mesoporous silica inorganic films were prepared in an acid solution at the air-solution interface by the biomimetic synthesis method, during which the hydrolysis of tetraethoxy silane (TEOS) was directed by cetyltrimethyl ammonium bromide (CTAB) supramolecule self-assemblies. The effects of material ratio, pH and sampling time on the qualities of silica films were investigated. Fourier transform infrared (FTIR) spectrophotometer, High resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) were used to measure the biomimetic synthesized silica films extracted with 0.50 mol·L-1 hydrochloric acid ethanol solution. The results indicate that the structure of hexagonal ordered mesoporous is maintained, while the surfactant is removed effectively in mesoporous silica films.

Ordered mesoporous silica inorganic films were prepared in an acid solution at the air-solution interface by the biomimetic synthesis method, during which the hydrolysis of tetraethoxy silane （TEOS） was directed by cetyhrimethyl ammonium bromide （CTAB） supramolecule self-assemblies. The effects of material ratio, pH and sampling time on the qualities of silica films were investigated. Fourier transform infrared （FTIR） spectrophotometer, High resolution transmission electron microscopy （HRTEM） and selected area electron diffraction （SAED） were used to measure the biomimetic synthesized silica films extracted with 0.50 mol·L^-1 hydrochloric acid ethanol solution. The results indicate that the structure of hexagonal ordered mesoporous is maintained, while the surfactant is removed effectively in mesoporous silica films.