o, Ce共掺杂TiO2纳米粉体制备及光催化性能研究

o-Ce codoped nano TiO2 photocatalyst was prepared hydrolysis precipitation method with Ti(Obu)4 as raw material at room temperature. The morphology and microstructure of the prepared nano (Co、Ce)-TiO2 were characterized by XRD ,TEM.The relation between the concentration of Co and Ce and their photocatalystic activity,between heat treatment temperatures and their photocatalystic activity were also activity also studied.The best doping rate and heat treatment temperature were obtained.The result shows:The mesoporous (Co,Ce)-TiO2 powder size was in the range of 20.4 nm. It had large special surface area of 97.442 m2•g-1.When the depoed concentration of Co was 0.1mol % and Ce was 0.05 mol %,the mesoporous (Co,Ce)-TiO2 had the best depoded photocatalystic activity with the heat treatment temperature at 500℃. Degradation rate of methyl organge was maximal,up to 90%.