title: An economic method for synthesis of highly ordered porous silica.
abstract: We report an economic method for synthesis of highly ordered silica with a mixing surfactant system containing short-chain cationic surfactant (decyltrimethyl ammonium bromide, denoted C10TMAB) and short-chain anionic surfactant (sodium octyl sulfate, denoted SOS) 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 N2 adsorption-desorption. The results showed that the pore structure of the resulting silica belongs to the two-dimensional hexagonal structure (space group 2D-p6mm) 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.
authors.affiliation: Chemical Engineering Department, Taishan Medical University, Taian, Shandong 271016, PR China.
authors.forename: Ren-Liang
authors.initials: RL
authors.lastname: Wang
authors.forename: Yan-Mei
authors.initials: YM
authors.lastname: Zhu
authors.forename: Xi-Man
authors.initials: XM
authors.lastname: Zhang
authors.forename: Hai-Wei
authors.initials: HW
authors.lastname: Ji
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Ge
mesh_terms: D003365:Costs and Cost Analysis; D046529:Microscopy, Electron, Transmission; D033362:Powder Diffraction; D053838:Scattering, Small Angle; D012822:Silicon Dioxide / Q000138:chemical synthesis*
chemical_list: D012822:Silicon Dioxide
keywords: Catanionic surfactant; Highly ordered silica; Short-chain