磁性铁氧体@类普鲁士蓝核壳结构纳米复合材料的自模板法合成及性能研究

项目名称： 磁性铁氧体@类普鲁士蓝核壳结构纳米复合材料的自模板法合成及性能研究

项目编号： No.21473059

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 胡鸣

作者单位： 华东师范大学

项目金额： 80万元

中文摘要： 磁性铁氧体@类普鲁士蓝（PBA）核壳结构（包括yolk-shell结构）纳米材料因其独特的结构及复合性能，使其在环境，能源和生物医学等领域有重要的应用前景。本项目拟通过自模板的方法，以不同形貌和粒径的磁性铁氧体为模板兼反应物，使PBA异相生长在其表面，构成一系列不同形貌的核壳结构磁性铁氧体@ PBA纳米材料；通过进一步的刻蚀得到yolk-shell结构材料。研究各种反应参数对核壳结构和yolk-shell结构磁性铁氧体@PBA形貌及性能的影响，掌握制备条件对产物结构的影响规律与复合材料的形成机理，探讨复合材料结构与性能的关系。研究此类材料吸附有害金属离子与降解有机污染物的能力。通过本项目的研究，可望建立一种制备核壳结构和yolk-shell结构磁性铁氧体@PBA纳米复合材料的通用方法，制备出一系列新型的核壳结构和yolk-shell材料，得到该类纳米复合材料的结构-性质-应用的关系。

中文关键词： 纳米材料；材料化学；多孔材料；功能材料；纳米结构

英文摘要： Ferrite @ Prussian Blue analogues (PBA) core-shell(including yolk-shell) nanocomposites have shown great promises in applications such as enviornmental protection, energy storage as well as biomedicine owing to their unique structures and combined properties. We aim to develop a self-template method to prepare ferrite@PBA core-shell nanocomposites.Ferrite particles serve as both template and reactant. The PBAs grow on the surface of ferrites by slowly consuming the transition metal ions of ferrites. By using ferrites with different shapes and sizes, core-shell materials with various shapes and sizes can be obtained.Furthermore, yolk-shell materials can be prepared by applying acid etching. We will clarify the influence of synthetic conditions on the structure of the obtained composites and the formation mechanism,and understand the relationship between the nanostructures and properties of mateirals.The ferrite@PBA core-shell(including yolk-shell) nanocomposites will be utilized for removal of toxic metal ions and organic pollutants from water. We are hoping to establish a general method to prepare PBA based core-shell (including yolk-shell) nanocomposites. A large quantities of novel core-shell and yolk-shell nanocomposites will be obtained. The relationships among structure-property-application of these kinds of materials will be clarified.

英文关键词： nanomaterial;material chemistry;porous material;functional material;nanostructure