中文摘要：

采用等体积浸渍法制备了膨胀石墨负载锐钛矿型纳米TiO2。用X射线衍射（XRD）表征了纳米TiO2的晶型,扫描电子显微镜（SEM）研究了膨胀石墨负载纳米TiO2前后的表面形貌。将该复合材料填充到自制的新型光电反应器中,考察了光催化、电催化及光电催化不同降解方法对主要成分是活性蓝的印染废水降解的影响,结果表明,该复合材料对印染废水具有良好的光电催化效应,以0.1mol/LNaCl作为支持电解质经过光电协同处理后,脱色率达到99.3%,化学需氧量（COD）降低约93.1%,其效率远高于单纯光催化或者电催化的结果。

英文摘要：

Anatase TiO2 coatings on highly porous expanded graphite（EG） were prepared by equal volume impregnation method.The morphology of EG with and without TiO2 coatings were studied by scanning electron microscope.The XRD pattern of TiO2 power was also studied.The composite material was filled into the novel home-made photoelectric reactor to degrade textile waste water containing reactive blue.The effects of different degradation technologies,such as photocatalysis,electro-oxidation,and photoelectrocatalysis were investigated and compared.The results show that chemical oxygen demand（COD） removal and color removal efficiency of the waste water by photoelectrocatalysis using 0.1 mol/L NaCl as supporting electrolyte is 93.1% and 99.3%,respectively,which are much higher than those obtained by using only photocatalysis or electrocatalysis.