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以(NH4)2S2O8为氧化剂,运用化学氧化法在纳米TiO2颗粒表面包覆聚苯胺薄膜,然后通过静电自组装方法简单快捷地制备了一种新型的复合光催化剂PMo12/PANI/TiO2,应用红外光谱(FT-IR)、透射电子显微镜(TEM)技术对光催化剂进行了表征。同时利用罗丹明B的降解实验对催化剂的光催化性能进行了评价。结果表明,该光催化剂具有很高的催化活性,90 min时罗丹明B的降解率达到98%以上。
A novel composite photocatalyst PMo12 / PANI / TiO2 was prepared by electrostatic self-assembly method using (NH4) 2S2O8 as oxidant. The surface of nanosized TiO2 particles was coated with polyaniline film by chemical oxidation method. (FT-IR) and transmission electron microscopy (TEM) were used to characterize the photocatalyst. At the same time, the photocatalytic performance of the catalyst was evaluated by the degradation experiment of rhodamine B. The results show that the photocatalyst has high catalytic activity, and the degradation rate of rhodamine B is over 98% at 90 min.