N,F,Ce三掺杂TiO_2/Ti光催化处理染料废水的研究  

Research of Dye Wastewater Treatment Using N,F,Ce Three Doped TiO_2/Ti Electrodes

作　　者：杨开 钟登杰[1] 徐云兰[1] 胡学步[1] 

机构地区：[1]重庆理工大学化学化工学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2017年第10期134-139,164,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆理工大学研究生创新基金资助项目(YCX2016243)

摘　　要：采用溶胶-凝胶法制备N,F,Ce三掺杂TiO_2/Ti膜电极。掺杂催化剂的X射线衍射(XRD)结果表明:N,F,Ce元素的掺杂有效抑制了TiO_2催化剂由锐钛矿相向金红石相的转变。考察了N,F,Ce三掺杂TiO_2/Ti膜电极的制备条件对催化性能的影响及其在可见光照射下处理罗丹明B的影响因素和光催化效率。在最佳条件下,处理150 min,其脱色率可达62.1%。处理过程中罗丹明B溶液的紫外-可见分光光谱表明:可见光区最大吸收波长略有蓝移,说明分子遭到了破坏,但未能使其矿化。N,F,Ce-doped TiO_2/Ti thin film electrodes have been prepared by the sol-gel method.The results of XRD spectrum indicated that doping effectively inhibited the crystal phase of TiO_2 change from anatase to rutile. The influence of preparation conditions on the N,F,Ce-doped TiO_2 catalyst photocatalytic performance and the influence factors on Rhodamine B degradation efficiency were investigated. The decolorization rate of Rhodamine B under the best conditions could reach to 62. 1% in 150 min. The result of the ultraviolet-visible spectroscopic spectra of Rhodamine B solutionshowed that the maximum absorption wavelength occurs slightly blue shift in visible light area,indicated the Rhodamine B molecules were damaged,but not been mineralized.

关 键 词：N F Ce掺杂TiO2/Ti 可见光 光催化 罗丹明B 

分 类 号：X131.2[环境科学与工程—环境科学]