FeVO4光催化剂降解甲基橙研究

Photocatalytic degradation of methyl orange using FeVO_4 photocatalyst

实验采用液相沉淀法制备了三斜型FeVO4光催化剂,采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)等方法对样品结构和形貌进行分析和表征,在40W紫外灯(主波长为253.7nm)照射下降解一定浓度的甲基橙溶液,研究其对甲基橙溶液降解效果。研究了催化剂用量、甲基橙初始浓度、光强度及pH值对甲基橙降解率的影响。

The triclinic FeVO4 was prepared through liquid-phase precipitation and characterized using XRD and SEM. Experiments were carried out using methyl orange（MO） as the pollutant object to evaluate the photocatalytic activity of FeVO4 powder. A UV light with the wavelength at 253.7nm was used as the energy source for the photocatalytic experiments. The effects of catalyst loading, initial MO concentration, light intensity and pH value on the degree of photo degradation have been investigated.