银基可见光光催化剂的可控制备及其对典型塑化剂的降解机理研究

项目名称： 银基可见光光催化剂的可控制备及其对典型塑化剂的降解机理研究

项目编号： No.51302112

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 唐华

作者单位： 江苏大学

项目金额： 25万元

中文摘要： 邻苯二甲酸酯类（PAEs）塑化剂不易降解，易于对生态环境造成危害，发展有效治理PAEs物质的新型光催化材料和技术具有重要的理论和现实意义。本项目拟以研究具有高性能的银基光催化材料的结构设计与可控制备为基础，通过水热、微波水热等方法可控制备银基可见光光催化材料，在银基光催化材料表面负载银纳米粒子构筑等离子体光催化复合材料，研究复合材料的形貌、微结构、纳米银的负载与光催化活性之间的内在联系，设计和制备出具有高可见光活性且性能稳定的银基复合光催化材料。然后，以典型PAEs有机污染物为降解对象，研究在可见光作用下的PAEs物质的降解过程及机理，揭示具有不同侧链的PAEs物质在光催化降解过程中的构效关系。该项目的开展对新型可见光光催化材料的设计和开发具有重要的指导意义，为银基光催化剂在处理环境污染技术中的实际应用提供重要的理论和实验依据。

中文关键词： 银基光催化材料；光催化降解；邻苯二甲酸二甲酯；可见光；

英文摘要： It is very difficult for phthalate esters to be decomposed , which can cause harmful to our ecological environment. Thus, it is an urgent task to development new photocatalysts and technology for the removal of phthalate esters. In this project, we intend to research the sliver-based photocatalytic materials based on the structure design and controllable fabrication: First, sliver-based visible-light active photocatalytic materials were prepared by hydrothermal and microwave hydrothermal methods. In addition, Ag nanoparticles will be deposited on silver-based photocatalysts to form plasmonic composites. The effects of the morphology of the composites as well as microstructure on the photocatalytic properties will be investigated. Studying the physical and chemical mechanisms of the Ag nanoparticles in enhancing composite photocatalyst, and to design and fabricate sliver-based composite photocatalytic materials with high visible-light active and stable properties. The decomposition process and mechanism of typical phthalate esters under visible-light irradiation are carefully investigated, and the relationship between the photocatalytic degradation of the phthalate esters will be revealed. The implementation of this project may provide new insight for the design and development of the new visible-light active pho

英文关键词： Silver-based photocatalysts；photocatalytical decomposition；phthalates；visible light；