ZnO纳米棒的制备及其光催化活性研究

Study on Preparation of ZnO Nanorod and Its Photocatalytic Activity

以Zn(Ac)2·2H2O、NaI和N2H4·H2O为原料,在未使用任何表面活性剂的简单水热反应体系中制得了ZnO纳米棒。采用X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)对产物的晶体结构、形貌进行了表征分析,并对其光催化活性进行了探讨,以ZnO纳米棒为光催化剂对有机染料污染物甲基橙进行了光催化降解实验。实验结果表明,氧化锌纳米棒对甲基橙的光催化降解具有很好的催化作用,在紫外光照射120min后,对甲基橙的降解率接近完全。

With Zn （Ac） 2 . 2H2O. NaI and N2 H4 . H2O as raw material, ZnO nanorods were prepared by using ZnO nanorods as photocatalyst. The rate of decolorization was estimated from residual concentration spectrophotometrically. The results showed that after 120 minutes UV illumination, the degradation rate of the Methyl Orange dye was close to 100%.