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以钛酸四丁酯为钛源,采用溶胶-凝胶法在HZSM-5分子筛表面合成TiO2前驱体,程序升温处理制得TiO2/HZSM-5负载型光催化剂.采用X射线衍射、扫描电镜、傅里叶变换红外光谱、X射线光电子能谱对光催化剂晶相结构、表面形貌及化学组成进行了表征.结果表明,HZSM-5可提高TiO2分散性能,降低TiO2晶粒的尺寸.TiO2/HZSM-5中的Ti都以TiO2形式存在,没有Ti-O-Si键生成.甲基橙溶液的光催化降解结果表明,负载后提高了TiO2对甲基橙溶液的光催化降解活性.TiO2的质量分数为30%,400℃下煅烧2h时的催化剂光催化性能最好.

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