金属-有机框架薄膜器件的制备及其对硝基芳香分子的荧光传感研究

项目名称： 金属-有机框架薄膜器件的制备及其对硝基芳香分子的荧光传感研究

项目编号： No.21301149

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 解明华

作者单位： 盐城工学院

项目金额： 24万元

中文摘要： 发展新型便携高效的爆炸物检测材料对社会安全及环境污染控制有着重要的现实意义，本项目旨在利用多孔MOFs材料的荧光传感性质开发新型的硝基芳香爆炸物的荧光薄膜检测器件。依据荧光的氧化还原猝灭机理，设计合成富含π电子的刚性羧酸配体，以3d-4f金属为节点，自组装得到荧光MOFs传感材料。之后采用表面活性剂、阻聚剂辅助等手段，合成其纳米颗粒，并通过热沉积、旋涂及提拉等方法，制备得到纳米荧光薄膜器件，使得材料在检测性能、便携性等方面得到极大提升。在合成工作基础上，重点关注配体结构、MOFs构筑方法及薄膜的制备手段对检测性能的影响，阐明配体结构、MOFs结构及薄膜形貌与检测性能之间的关系，系统建立调控纳米荧光薄膜器件检测性能的方法。本项目以纳米薄膜的形式实现MOFs材料在易爆物检测方面的应用，创新拓展了MOFs荧光传感材料的研究思路，为将来开发生产实用型爆炸物检测器件提供初步的理论研究基础和实验支持。

中文关键词： 金属-有机框架材料；荧光；薄膜器件；化学发光；传感

英文摘要： Developing new portable sensing materials towards high explosives has attracted considerable interests owing to social security, environmental and humanitarian implications. This project is aimed at fabricating new sensing devices toward Nitroacromatic explosives using porous MOFs with fluroscent sensing properties as the precusors. Based on the redox queching mechanism of fluroscence, we will firstly study to design and synthesize rigid aromatic ligands which have carboxylic acid groups and π electrons. The ligands will be used to react with 3d-4f metal ions through self assemble process to construct porous MOFs which have fluorescent sensing properties towards nitroaromatic explosives. Next, by employing the surfactant and/or capping agent assisted methods, nano-particles of the above sensing MOFs will be synthesized, which will be used to fabricate fluorescent thin film devices through thermal deposition, spin coating,dip coating etc. The resulted thin film devices will have promotions both in sensing ability and portability. On the base of the synthesizing work, we will focus on the study of the relationship between the device's sensing ability and the synthesis parameters, which refer to the identity of ligand, MOFs building strategy and the fabrication of the thin film. The understanding of this relation

英文关键词： metal-organic frameworks；fluorescence；thin film device；chemiluminescence；sensor