近红外光响应金属有机框架材料及纳米复合材料的制备及机理研究

项目名称： 近红外光响应金属有机框架材料及纳米复合材料的制备及机理研究

项目编号： No.21471001

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： 牛和林

作者单位： 安徽大学

项目金额： 85万元

中文摘要： 太阳光44%的能量来自近红外光，通过近红外光催化化学反应的研究是一个新兴的领域，已受到广泛重视。本项目拟制备晶体结构中具有多种配位构型的微（介）孔多核金属有机框架材料（MOFs）；在该类MOFs孔内或表面负载具有光催化活性的纳米晶诸如BiVO4、Bi2WO3、碳量子点及TiO2等；以期获得具有高效近红外光催化的新型MOFs 材料。研究内容包括：（1）探索具有多种配位构型，适配近红外响应的多核微（介）孔金属有机框架材料的制备工艺；（2）制备类似Cu2(OH)PO4,具有多种配位构型的无机材料；（3）探索MOFs 负载具有光催化活性的纳米晶的复合材料的制备工艺；（4）研究上述材料的近红外催化活性，探索近红外催化活性与配位构型的构效关系及能级匹配、电荷分离、输运、复合等物理过程，建立近红外催化机制。本项目的开展将开发出新型高效近红外光响应催化剂，填补MOFs材料在在近红外催化领域的空白。

中文关键词： 纳米复合材料；光催化剂；近红外；金属有机框架材料；构效关系

英文摘要： NIR constitutes about 44 % of sunlight.Chemical transformations promoted by near-infrared (NIR) light is an emerging area,and the study of its utilization is extremely popupar. This project plans to prepare micro(meso)porous Metal-Organic Framworks (MOFs) materials with multiple coordination modes. Meanwhile, UV-Vis active photocatalysts such asBiVO4,Bi2WO3,TiO2,ZnO and Carbon quantum dots will be loaded into the pores or onto the surfaces of the as-prepared MOFs materials. The NIR photocatalytic activity of these materials will be studied. Detailed research contents include:(1)Explore the synthetic strategy of preparing micro(meso)porous MOFs materials with multiple coordination modes and NIR absorption;(2)Prepare nano inorganic materials with multiple coordination modes similar with Cu2(OH)PO4;(3)Explore the preparation of nano UV-Vis photocatalyst/MOFs materials composites;(4)Investigate the NIR photocatalytic mechanism by exploring the structure-function relationship, physical processes such as energy levels match, charge separation, transportation, composition etc. This project will help to develop new materials with high-efficiency NIR photocatalytic activity, and open up a new application area of MOFs materials in NIR photocatalysis. Moreover, it will have a positive impact for the efficient utilization of solar energy, realizing power up the world with sunlight and alleviating environmental pollutions.

英文关键词： Nanocomposites;Photocatalyst;Near-infrared;MOFs;Structure-activity relationship