摘要：采用表面活性剂结构诱导下CaO消解法,通过降低反应体系表面张力,抑制Ca(OH)₂晶体颗粒的生长及颗粒团聚,制备具有多孔特征的高比表面Ca(OH)₂粉体颗粒。采用扫描电镜、X射线衍射、比表面积分析、孔结构等方法对样品进行了表征。结果表明:反应体系中表面活性剂种类与用量、m(H₂O)∶m(CaO)比值对样品颗粒形态、比表面积、孔隙结构有影响。m(H₂O)∶m(CaO)比值以及加入适量的表面活性剂时,可制备粒度为200～500nm的Ca(HO)₂晶体颗粒,且样品具有多孔性,孔径分布均匀,为8～15nm。

关键词：表面活性剂；多孔结构；吸-脱附；比表面积

Abstract ： Ca（OH）₂ particles with high specific surface area and porous characteristics were firstly synthesized by surfactant template leading CaO hydrolysis method. Through the surfactant reducing the surface tension of reaction system， growth of Ca（OH）₂ crystals was controlled and reunion of particles was inhibited. The samples were characterized by means of SEM， XRD， surface area analysis and hole structure analysis. The particle morphology， specific surface area and the hole structure are controlled by types and amount of surface-active agent and the mass ratio of H₂O and CaO. When the mass ratio of H₂O and CaO was suitable and a certain amount of surfactants was added， Ca（OH）₂ crystalline particles were prepared whose size were 200～500 nm. The particles were porous and their pore size was 8～15 nm. 

Keywords： surfactant； porous structure； adsorption-desorption； specific surface area