具有高活性晶面的锐钛矿介孔TiO2的制备及在光催化上的应用

来源 :第七届中国科学院“百人学者论坛”学术年会 | 被引量 : 0次 | 上传用户:mc76759
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自2008年Lu等人报道了利用HF 来合成具有高活性{001}晶面的锐钛矿TiO2晶体[1],对于具有高反应活性{001}的纳米结构TiO2引起了广泛的关注[2].为了获得高活性晶面纳米结构,人们多采用以HF 或含氟化合物为保护剂.这里我们报道一条无氟的合成路线来获得具有高活性晶面的介孔TiO2微米球,该微球表面由高活性{001}组成,内部是具有介孔结构的TiO2纳米晶,这在一定程度上提高了该材料的比表面积.同时该材料的对染料分子吸附和单位面积的光催化活性明显优于商品化的P25 TiO2.
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