铈掺杂TiO_2／Ti光电极制备及可见光下光电催化性能的研究

Preparation of Cerium-doped TiO_2/Ti Photoelectrodes and Photoelectrocatalytic Performance under Visible Light

采用阳极氧化法制备铈掺杂TiO_2/Ti光电极,用SEM、XRD、XRF、XPS和UV/VIS/NIR对光电极的性能进行表征,并对其可见光照射下的光电催化性能进行了测试.研究结果表明:在成膜电压为160V,电流密度为100mA/cm^2,Ce(NO_3)_3浓度为960mg/L条件下制备的铈掺杂TiO_2/Ti光电极在降解罗丹明B的实验中表现出良好的光电催化活性.

Cerium-doped TiO2/Ti photoelectrodes were prepared by anodization. The photoelectrodes were characterized by SEM, XRD, XRF, XPS and UV/VIS/NIR, and their photoelectrocatalytic performance under visible light irradiation was also investigated. Taking degradation efficiency of rhodamine B as indication, the preparing conditions of Cerium-doped TiO2/Ti photoelectrodes were optimized. The optimal parameters are voltage of 160V, current density of 100mA/cm^2 and Ce（NO3）3 concentration of 960 mg/L.