We report an economic method for synthesis of highly ordered silica with a mixing surfactant system containing short-chain cationic surfactant TMAB) and short-chain anionic surfactant as the templating agents. Highly ordered supermicroporous silica was synthesized by judiciously chosen mixing ratio of surfactants. The samples were characterized by small-angle X-ray diffraction, transmission electron microscopy, and N-2 adsorption-desorption. The results showed that the pore structure of the res...更多
We report an economic method for synthesis of highly ordered silica with a mixing surfactant system containing short-chain cationic surfactant TMAB) and short-chain anionic surfactant as the templating agents. Highly ordered supermicroporous silica was synthesized by judiciously chosen mixing ratio of surfactants. The samples were characterized by small-angle X-ray diffraction, transmission electron microscopy, and N-2 adsorption-desorption. The results showed that the pore structure of the resulting silica belongs to the two-dimensional hexagonal structure with a pore size of ca. 2.2nm. Moreover, the method proposed herein is expected to facilitate the synthesis of not only porous silicas but also materials with other framework compositions. 2013 Elsevier Inc. All rights reserved.收起
