高等学校化学学报Issue(9)：1864-1870,7.DOI:10.7503/cjcu20140371
二元阴、阳离子表面活性剂调控合成不同形貌的介孔二氧化硅
Morphological Transformation of Mesoporous Silica Using Binary Cationic-anionic Surfactant as Template
摘要
Abstract
Mesoporous silica with various morphologies were obtained using binary cationic-anionic surfactant as template after a facile hydrothermal treatment. Cetyltrimethyl ammonium bromide( CTAB) and sodium do-decyl sulfonate( SDS) were selected as cationic and anionic structure direct agent respectively. Mechanism of morphological control during this process was investigated by regulating the molar ratio of SDS/CTAB. The as-synthesized samples were characterized by scanning electron microscopy( SEM) , small angle X-ray diffraction ( SXRD ) , transmission electron microscopy ( TEM ) and nitrogen adsorption-desorption isotherms measure-ments. Formation of the different stable morphologies were attributed to the structural transition of SDS/CTAB assembly from micelle to bilayer commitment with the ascending ratio of SDS.关键词
形貌调控/介孔二氧化硅/阴/阳离子表面活性剂/结构转变/组装Key words
Morphological control/Mesoporous silica/Cationic-anionic surfactant/Structural transition/Assembly分类
化学化工引用本文复制引用
彭策,牟鸣薇,谢诗航,蔡强..二元阴、阳离子表面活性剂调控合成不同形貌的介孔二氧化硅[J].高等学校化学学报,2014,(9):1864-1870,7.基金项目
国家“九七三”计划项目(批准号:2013CB932800)和国家科技支撑计划项目(批准号:2012BAI17B04)资助. Supported by the the National Basic Research Program of China(No.2013CB932800) and the National Key Technology R&D Program of China(No.2012BAI17B04) （批准号:2013CB932800）
