Controllable synthesis of mesoporous SBA-15 using H2SO4

Mesoporous SBA-15 has been synthesised using a binary acid H2SO4 as media. The effects of H2SO4 concentration and synthesis temperature on the morphologies and mesostructures of the obtained mesoporous SBA-15 materials were studied. The results revealed that the more-ordered structure was obtained at a H2SO4 concentration of 2 M, while a higher H2SO4 concentration of 3 M led to a less-ordered structure. In addition, with increasing H2SO4 concentration from 1 to 3 M, the morphologies of SBA-15 particles transferred from rod-like to sphere-like. This work demonstrated that mesoporous SBA-15 with various textural properties and morphologies can be feasibly obtained by controlling the H2SO4 concentration and synthesis temperature.

Automated summary

Mesoporous SBA-15 was synthesized using a binary acid H2SO4, and the effects of H2SO4 concentration and synthesis temperature on the morphology and mesostructure were investigated. Results showed that different ordered structures and morphologies could be obtained by adjusting the H2SO4 concentration and synthesis temperature.