摘要：

共沉淀法合成了镨掺杂的氧化锌（Pr-ZnO），并利用X射线衍射、扫描电子显微镜和紫外可见光吸收光谱对Pr-ZnO进行了表征。降解苯酚试验结果表明：超声波催化与紫外光催化具有协同作用。Pr掺杂量为0.1%时，使用0.15 g/L的Pr-ZnO 180 min内降解10 mg/L的苯酚，降解率达到99%。催化剂经过4次重复利用后，苯酚降解率仍超过75%。

关键词: 苯酚, 镨掺杂氧化锌, 声光催化

Abstract:

Pr-doped ZnO was synthesized by a co-precipitation method, which were characterized by X-ray diffraction, scanning electron microscope and ultraviolet-visible light absorption spectrum. The experimental results of phenol degradation showed that ultrasonic catalysis and ultraviolet photocatalysis have a synergistic effect. The degradation efficiency of phenol reached 99% when the doping amount of Pr was 0.1%, the concentration of phenol was 10 mg/L, time was 180 min, and the catalyst dosage was 0.15 g/L. After the catalyst was reused four times, the degradation rate of phenol still exceeded 75%.

Key words: phenol, Pr-doped ZnO, sonophotocatalysis

中图分类号: 

• X703