采用玻璃珠为基底材料,钛酸正丁酯为前驱物,PEG400为造孔剂制备了TiO2中孔纳米薄膜.利用SEM、TEM、AES和Raman光谱研究了薄膜的表面性能和结构特性.利用甲醛为探针分析,研究了该薄膜的光催化活性,并讨论了其催化活性与结构特性的关系.结果表明,该薄膜催化剂具有高催化活性和长催化寿命.且当膜层为3层(对应薄膜厚度约为210nm),PEG添加量为15%,400℃煅烧2h制备条件最佳.
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