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以十六烷基三甲基溴化氨 (CTMABr)为模板剂 ,利用碱性水热法制备了介孔氧化硅材料 ,并采用小角度XRD、HRTEM、BET和FT IR等测试手段研究了其孔的结构、表面N2 吸附特性和孔径分布情况。结果表明 :碱性水热法制得的介孔氧化硅材料具有规则的六方结构 ,介孔的最可几半径为 1 9mm ,比表面积为 5 42 8m2 / g ,孔容为 0 4 5 6cm3/ g。
Mesoporous silica was prepared by alkaline hydrothermal method using cetyltrimethylammonium bromide (CTMABr) as a template. The properties of the mesoporous silica were investigated by means of small angle XRD, HRTEM, BET and FT IR. Pore structure, surface N2 adsorption properties and pore size distribution. The results show that the mesoporous silica prepared by alkaline hydrothermal method has a regular hexagonal structure. The most probable radius of the mesopores is 19mm, the specific surface area is 528m2 / g, the pore volume is 0 456cm3 / g .