中文摘要：

通过自制Ce-TiO2光催化涂料,利用X射线衍射、激光粒度分析和扫描电镜表征Ce-TiO2光催化颗粒的微晶尺寸和晶体结构,进行了光催化涂料耐水性实验和光催化涂料降解甲醛实验,创建了BP模型函数,建立了Ce-TiO2光催化涂料降解甲醛溶液的预测模型。结果表明,采用彻底除去负离子和温和的热处理方式能显著降低Ce-TiO2颗粒团聚,Ce-TiO2一次颗粒平均粒度在0~1μm范围内,并且呈现正态分布。Ce-TiO2光催化涂料的耐水性能和光催化性能优良,经过1020 min后,降解甲醛溶液效率高达80.7%。Ce-TiO2光催化涂料的预测模型的预测值和实测浓度吻合较好,平均绝对误差为-0.00028μg/mL,平均相对误差为-0.202%。

英文摘要：

Cerium - doped titanium dioxide （ Ce-TiO2 ） photocatalytic coating was prepared. The phases and morphologies of Ce-TiO2 photocatalyst were characterized by X - ray diffraction, laser particle size analyzer and scanning electron microscope. Experiment of photocatalytic coating resistance and photocatalytic coating degradation of formaldehyde were building. Prediction model of Ce-TiO2 photocatalytic coating degradation of formaldehyde solution was established by BP model function. The results show that the aggregation of Ce-TiO2 particles can be significantly decreased by thoroughly removing negative ions and mild heat treatment, the average size of Ce-TiO2 particles was 0 ~ 1 ~Lm and present normal distribution. After 1020 min, the excellent water resistant property and photocatalytic properties of Ce-TiO2 photocatalytic coating was obtained, and the degradation of formaldehyde solution efficiency was as high as 80.7%. The predicted data of forecasting model agree well with the experiment data, the average absolute error was -0. 00028 mg/mL and the average relative error was -0.202%.