减灭药品及个人护理用品(PPCPs)潜在环境威胁的新技术日益受到重视。因具有化学稳定性高、无毒等优点，TiO2被广泛应用于光催化降解PPCPs。然而，TiO2存在仅能被紫外光激发、低量子效率等不足。因此，如何利用TiO2太阳光催化降解PPCPs是亟待解决的环境材料问题。. 拟以取代Dawson结构HPC@TiO2分子印迹可见光催化剂的结构调控与降解PPCPs性能增强为研究对象，用复分解、嵌入改性法等合成稀土（过渡）金属取代多原子（抗衡阳离子）可见光响应HPC；用溶胶凝胶法等制备分子印迹TiO2；经浸渍法等构筑取代Dawson结构HPC@TiO2分子印迹可见光催化剂，用XRD等进行表征，以可见光降解PPCPs乙酰水杨酸、对羟基苯甲酸乙酯为探针反应考察其光催化活性。探索可见光响应高活性TiO2复合光催化剂的制备方法，结合理论分析计算，系统研究构效关系，揭示合成规律，为其设计及工业应用奠定基础。

Much attention has been devoted to development of novel technologies for degradation of pharmaceuticals and personal care products （PPCPs）due to their potential environmental threats. Titanium dioxide (TiO2) is widely used in photocatalytic degradation of PPCPs because of its high chemical stability, non-toxicity, and so on. However, TiO2 is effective only under ultraviolet radiation and the low quantum efficiency hindered its further utilization. Therefore, how to make use of TiO2 sunlight catalytic degradation of PPCPs is an environmental material problem, which need to be solved urgently. . This project prepares to take investigation on tunable microstructure and enhanced photocatalytic activity for PPCPs degradation of substituted Dawson type heteropoly compounds HPC@TiO2 molecularly imprinted visible light photocatalysts as the research object. Firstly, visible light responsive substituted Dawson type heteropoly compounds are synthesized via double decomposition reaction, embedded modification method and so on with rare earth or transition metal to replace the addenda atoms or counter cations. Secondly, molecular imprinted TiO2 photocatalysts are synthesized via sol-gel method and so on. Thirdly, substituted Dawson type heteropoly compounds HPC@TiO2 molecularly imprinted visible light photo-catalysts are constructed by impregnation method, etc. And then different techniques including XRD, etc. are employed to characterize substituted Dawson type heteropoly compounds HPC@TiO2 molecularly imprinted visible light photocatalysts. The indicator reaction, visible light photo-degradation of PPCPs acetosalicylic acid and 4-hydroxybenzoate, can be used to evaluate photocatalytic activities of the as-prepared samples ..To establish foundation for the design and industrial application of efficient visible light induced TiO2 composite photocatalyst, the relationship between structure and activity is investigated systematically on the basis of the theoretical analysis and calculation, synthesis law is revealed.