采用超声水热法制备出纳米凹凸棒石黏土矿,加入定量的分散剂,在一定的pH值、时间、温度的条件下,能制备出50～200nm的凹凸棒石纳米粒子.采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)等测试手段进行分析和表征,探讨了纳米凹凸棒石黏土矿的形貌、形成机理及其晶体结构.结果表明:在不同的反应条件下,所产生的凹凸棒石纳米粒子的大小和形貌也不同;在不同的反应酸体系中,超声水热法制备出的纳米凹凸棒石结构也发生了变化.
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