含哒嗪单元给受体共轭聚合物/纳米二氧化钛核壳结构复合材料的制备及其光催化活性研究

项目名称： 含哒嗪单元给受体共轭聚合物/纳米二氧化钛核壳结构复合材料的制备及其光催化活性研究

项目编号： No.21464014

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 如仙古丽·加玛力

作者单位： 新疆大学

项目金额： 52万元

中文摘要： 本项目拟以吸电性比较强的含哒嗪为受体和中间单元，类EDOT单元为给体和封端单元的给受体三联体化合物为单体，分别以空心和实心TiO2纳米球为无机相，原位聚合法制备哒嗪单元给受体共轭聚合物/纳米TiO2核壳结构复合材料并研究其光催化活性。探讨复合材料中含哒嗪单元给受体共轭聚合物结构对扩展TiO2光催化剂的光响应范围所起到的作用，研究各组分在复合材料中的所占比例对材料整体的性质、功能的贡献和影响，为该类复合材料的改性研究提供理论和实践基础。探讨壳结构均匀复合的最佳条件，深入探索复合过程的可控性即反应的均匀性和重现性等问题，并与非核壳结构复合材料比较，找出核壳结构复合材料的优势以及缺陷，提出弥补缺陷的方法和技术思路。研究该类复合材料的光催化活性，并为该类复合材料在光催化领域内的应用提供理论和实践基础。

中文关键词： 哒嗪单元；共轭聚合物；纳米二氧化钛；纳米复合材料；光催化

英文摘要： This project chooses a series of donor-acceptor trimer compounds, in which the pyridazine unit is donor and internal unit, while the EDOT type units are acceptors and end-capped units, and selected hollow(or solid)titanium dioxide nanosphere as inorganic phase for preparation of the core-shell structured composites of donor-acceptor conjugated polymers containing pyridazine unit with nano titanium dioxide. And the photocatalytic properties of core-shell structured composites will be studied. This project will take deep studies on the role of donor-acceptor conjugated polymers containing pyridazine unit on the extending the spectral response range of the TiO2 as well as the effect and contribution of structure and molar ratio of donor-acceptor conjugated polymers containing pyridazine unit and nano titanium dioxide on the properties and functions of composite materials. This project will also take deep studies on the reaction conditions for formation of uniform composite.And the advantages and defects of the core-shell structured composites will be discussed to give theoretical and practical basis to improve of core-shell structured composites by comparing the structure and properties of the noncore-shell structured composites. This project will also supply the theoretical and practical basis for the potential application of these composites on the photocatalysis area by evaluating their photocatalytic activities.

英文关键词： pyridazine unit;conjugated polymer;nano-titanium dioxide;nanocomposite;photocatalysis