Influence of Cu2+ Doping on the Photocatalytic Activity of TiO2 Film
With the approach of anodic oxidation,TiO2/Ti film doped with Cu2+ was produced in H2SO4 electrolyte mixed with CuSO4.The surface morphology and the roughness of the films were studied with atomic force microscopy.The phase composition of the films was studied by X-ray diffraction.The photocatalytic activity of the films was compared through the photocatalytic degradation rate of phenol.The relations of the photocatalytic activity to the concentration of Cu2+,the microstructure and the surface roughness of the film were investigated.The results showed that Cu2+ increased the surface roughness and restrained the growth of crystal.In addition,the phenol in aqueous solution was successfully photodegraded under visible light irradiation by Cu2+-TiO2/Ti film.The composition and structure of the film affected the catalytic activity greatly.Compared with TiO2/Ti film,the recombination rate of e-and h+ of Cu2+-TiO2/Ti film was decreased.
Cu2+-TiO2/Ti film Anodic oxidation Photodegradation Phenol
Ruihai Cui Zhaohua Jiang Zhongping Yao
Dept.of Applied Chemistry;Harbin Institute of Technology,Harbin,150090,P.R.China;Dept.of Life Scienc Dept.of Applied Chemistry;Harbin Institute of Technology,Harbin,150090,P.R.China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1483-1485
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）