以凹凸棒石黏土(Attapulgite,ATP)为载体,通过酸性溶胶法制备纳米TiO2/SnO2/ATP前驱体,再经过不同温度煅烧得到其复合体.利用透射电镜(TEM)、X射线衍射(XRD)、热重分析(TG)等对其组成、尺寸、结构等进行分析和表征.结果表明,SnO2和TiO2纳米颗粒很好地复合在ATP表面而且分布均匀没有明显的团聚,同时SnO2的掺杂及ATP的负载使复合体中TiO2柱径比相同工艺获得的纯TiO2的粒径要小,SnO2的掺杂降低了复合体中TiO2晶型转变温度,在形成锐钛矿型TiO2的同时,复合体中ATP的吸附能力得以保持.
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