以十六烷基三甲基溴化铵、十二烷基硫酸钠和P123三种表面活性剂为共模板剂合成了含钒介孔空心球,研究了钒含量及反应条件对空心球形成的影响.结果表明:当n(V)/n(Si)低于0.05时不能形成空心球,而n(V)/n(Si)过大时,大部分钒在材料中以氧化物形式出现,合适的n(V)/n(Si)为0.1.最佳反应条件为pH值5.0,45℃反应2h.产物结构规整,且对苯乙烯过氧化氢选择氧化反应有着良好的催化性能.
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