以钛酸四丁酯为钛源,碳酸铵为掺杂剂,采用溶胶-凝胶法制备了含氮的二氧化钛光催化剂.用X射线衍射对制备的试样进行物相分析,扫描电镜观察结构与形貌.用光电子能谱仪(XPS)做表面分析,以罗丹明B水溶液的光催化降解为模型反应,评价了所制备的试样的光催化活性.结果表明,用3种原料配比制备的TiO2粉末均为锐钛矿型结构.其中钛酸四丁酯与碳酸铵摩尔比为1:2试样光催化效果最好,其TiO2颗粒为纳米级尺寸,且粉末分散均匀.
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