TNT印迹多级孔结构、中空纳米纤维膜的制备及其荧光专一响应特性研究

项目名称： TNT印迹多级孔结构、中空纳米纤维膜的制备及其荧光专一响应特性研究

项目编号： No.21204100

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 高分子科学

项目作者： 祖佰祎

作者单位： 中国科学院新疆理化技术研究所

项目金额： 25万元

中文摘要： 开发能够专一、快速检测痕量TNT的荧光传感材料是目前国内外危险化学品检测领域关注的焦点。为进一步提高TNT荧光传感材料的灵敏性及抗干扰能力，本项目从设计材料的结构出发，采用静电纺丝方法，结合模板技术与分子印迹技术，制备TNT印迹多级孔结构、中空纳米纤维膜荧光传感材料，以达到提高材料的比表面积和选择性富集TNT分子的目的，实现专一、快速检测痕量TNT。通过调整溶胶-凝胶制备参数及静电纺丝技术参数，制备一系列具有不同孔结构的中空纳米荧光纤维膜。比较不同结构的纤维膜对TNT荧光响应特性的差异，探讨结构参数与荧光材料的抗干扰能力、响应时间及检测灵敏度等的对应关系，优化改进材料结构，获得具有专一、快速、痕量响应特性的TNT印迹荧光纤维膜。此研究将为TNT荧光传感材料的合成提供理论与实验依据，同时也为用于有机危险化学品检测的荧光传感材料的设计和制备提供新的思路。

中文关键词： 荧光传感材料；纳米纤维膜；TNT；分子印迹技术；静电纺丝

英文摘要： The development of fluorescent materials with specific and rapid response to trace amount trinitrotoluene (TNT) is one of the focus in the area of dangerous chemicals detection. To further improve the sensitivity and anti-jamming ability of the sensing materials, it is proposed to synthesize hierarchically porous fluorescent hollow nanofibrous film for TNT detection by electrospinning method incorporated with molecular imprinting technique and template method. The nanofibrous film which has a large surface area and the ability to sectively enrich target molecule can be applied for the rapid detection of trace amount TNT. A serial of fluorescent hollow nanofibrous film with different pore sizes can be synthesized by adjusting the experimental parameters. The corresponding relationship between the structure parameters and the anti-jamming ability, the response time and the sensitivity of the fluorescent material will be established. As a result, the fluorescent hollow nanofibrous film with specific and rapid response to trace amount TNT will be synthesized according to it.This study will provide a solid theoretical and experimental basis for the synthesis of TNT sensor material and shed light on the design and synthesis of fluorescent material towards the sensing of organic dangerous chemicals.

英文关键词： Fluorescent Materials；Nanofibrous Film；TNT；Molecular Imprinting Technology；Electrospinning