三维磁性有序介孔材料的可控构筑及其催化过硫酸盐的机理研究

In order to remove the low concentration, highly toxic and refractory antineoplastic drugs, three-dimensional magnetic ordered mesoporous materials are developed and applied to the heterogeneous catalytic peroxymonosulfate oxidation process. The new ordered mesoporous materials with unique structural features and interface characteristics can identify, enrich and catalyze peroxymonosulfate for the degradation of antineoplastic drugs. The induced synergistic effect may achieve the efficient removal of antineoplastic drugs. In this project, typically antineoplastic cyclophosphamide is chosen as the target pollutant to analyze the removal efficiency originated from the synergistic effect of different ordered mesoporous materials and their influencing factors, and then screen the best ordered mesoporous materials for the catalytic decomposition of peroxymonosulfate. The key factors and their mechanisms which control the cyclophosphamide removal are revealed through establishing the relationship between the synergistic effect and structural features or interface characteristics. Meanwhile, the degradation pathway of cyclophosphamide and the safety of its degradation products are investigated, which will provide the scientific basis and technical support for its practical engineering application.

针对水中低浓度、高毒性、难降解抗肿瘤药的去除问题，开展三维磁性有序介孔材料的研发工作，并于非均相催化过硫酸盐氧化技术中应用。该新型有序介孔材料独特的结构特征和界面特性使其能够识别、富集、催化降解水中抗肿瘤药，引发的协同效应可能实现抗肿瘤药的高效去除。本项目选择典型抗肿瘤药环磷酰胺作为目标污染物，分析不同有序介孔材料协同效应的去除效能及其影响因素，筛选催化分解过硫酸盐性能最佳的有序介孔材料。建立有序介孔材料的结构特征、界面特性与协同效应之间的关系，揭示控制环磷酰胺去除的关键因素及其机制。同时探讨催化反应过程中环磷酰胺的降解路径及其产物的安全性，为该新型有序介孔材料的实际工程应用提供科学依据和技术支持。

针对水中低浓度典型PPCPs的去除问题，开展三维磁性有序介孔材料的研发工作，并于非均相催化过硫酸盐氧化技术中应用。该新型有序介孔材料独特的结构特征和界面特性使其能够识别、富集、催化降解水中典型PPCPs，引发的协同效应可能实现典型PPCPs的高效去除。本项目选择典型PPCPs作为目标污染物，分析不同有序介孔材料协同效应的去除效能及其影响因素，筛选催化分解过硫酸盐性能最佳的有序介孔材料。建立有序介孔材料的结构特征、界面特性与协同效应之间的关系，揭示控制典型PPCPs去除的关键因素及其机制。同时探讨催化反应过程中典型PPCPs的降解路径及其产物的安全性，为该新型有序介孔材料的实际工程应用提供科学依据和技术支持。