中文摘要：

利用环境测试舱模拟室内环境,通过设计正交实验,采用＂极差分析＂法对制备出的一系列的Cu-Ce/TiO2光催化效果进行分析。利用X射线衍射仪、扫描电镜仪和紫外-可见分光光谱仪,对微晶尺寸、晶相结构与光学性能进行分析。结果表明：Cu-Ce掺杂负载量、Cu-Ce摩尔比和烧结温度三因素对Cu-Ce/TiO2光催化效果影响的程度相互独立,即：Cu-Ce掺杂负载量〉Cu-Ce摩尔比〉烧结温度,当A3=3%、B3=1∶1和C2=500℃,得到优方案A3B3C2。掺杂Cu、Ce可以在TiO2晶体内形成锐钛型和金红石型的混晶结构,提高吸附能力,减少表面光生电子与光生空穴的复合,并且促进锐钛矿相向金红石相的转变,抑制晶粒增长,使光吸收带边发生红移。

英文摘要：

The photocatalysis effect of Cu-Ce/TiO2 was analyzed in the environmental test chamber by orthogonal test and extreme difference analysis. Crystallite size,crystal structure and optical performance were analyzed by X-ray diffraction,scanning electron microscopy and ultraviolet UV-VIS spectroscopy. Results show that influence degrees of Cu-Ce doping load,Cu-Ce molar ratio and sintering temperature are relatively independent,that is,the influence degree of Cu-Ce doping load〉 that of molar ratio 〉that of sintering temperature. If A3 = 3 %,B3 = 11and C2 = 500 ℃,A3B3C2 was optimal solution. Due to doping Cu,Ce,mixed crystal structures like anatase-type and rutile-type are formed in TiO2 crystal structure,which makes the adsorption ability increase and the recombination of surface photo-generated electron and photo-hole reduce. Besides,it also promotes anatase turning into rutile,restrains the enhancement of crystal particle and makes optical absorption band edge red-shifting.