具有高吸附性能的载体-TiO2光催化剂复合材料制备是未来TiO2纳米光催化研究领域的重要发展方向.本文以凹凸棒石为载体,通过钛酸四丁酯-丙醇溶液浸渍-过滤-丙醇蒸发-水蒸气作用下钛酸四丁酯水解-低温煅烧程序操作,获得凹凸棒石-TiO2纳米复合光催化材料.高分辨透射电镜表征结果显示:TiO2颗粒直径5～10nm,具有锐钛矿结构,在凹凸棒石表面分布均匀.该制备方法工艺简单,钛酸四丁酯利用率高,对水中有机污染物光催化处理、抗菌消毒、空气净化等方面具有很大潜在应用价值.
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