本文用水作为分散介质,采用球磨法掺杂一定量的Bi12TiO20于ZnO中制备复合光催化剂Bi12TiO20/ZnO. 利用UV-Vis、XRD和SEM等仪器对样品进行了分析与表征. 通过对甲基橙的氧化来研究其光催化活性. 结果表明,光催化剂Bi12TiO20/ZnO对甲基橙氧化的催化活性高于氧化锌的催化活性.当Bi12TiO20的掺杂量为0.5 %(质量分数),球磨时间为12 h,焙烧温度为300 ℃时,光照20 min后,复合光催化剂Bi12TiO20/ZnO对甲基橙的降解率可达到95.2 %.
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