检测持久性有机污染物的纳米气敏材料的制备研究

The control and expeditious detection to persistent organic pollutants have currently become one hotspot relating to global environmental protection because of the irreversible and serious harm that persistent organic pollutants caused to environment and human health. Due to the advantages of gas sensing sensors based on nanomaterials, such as high sensitivity, good stability, convenient convey and low price, the combination with gas sensing nanomatrials and POPs detection not only achieve high selective expeditious detection to POPs, but also develop and exploit new purpose to gas sensing nanomaterials. In this task, the novel nanostructured cell with especial configuration would be synthesized by non-aqueous medium method and wicrowave assisting method, and realized high sensitive and expeditious detection to POPs through selecting identifier between nanostructured materials and POPs. The new nano gas sensing sensors would be fabricated via improving traditional facture. The gas mechanism would be discussed using density fuctional theory combined with experiment data. It would be presented technology foundation and theory basis for decelopment and exploiture high sensitive sensors to detect POPs in future.

由于持久性有机污染物(POPs) 能够对生态环境和人类健康造成不可逆转的严重危害，因此对POPs的控制及其快速检测成为当前全球环境保护的热点之一。由于纳米气敏材料制作的气敏传感器具有灵敏度高、稳定性好、便于携带、价格便宜等优点，因此将纳米气敏材料技术与POPs的检测有机结合，不仅可以实现对POPs的高选择性的快速检测，同时也为纳米气敏材料的研制和开发拓展了新的用途。本项目拟采用非水介质法和微波辅助法制备具有特殊结构的纳米结构单元，利用纳米结构的特性与POPs分子的选择识别特征，实现功能纳米材料对POPs的高灵敏度快速检测；通过改善传统气敏元件的制作方法获得新型纳米气敏传感器；结合实验数据，运用密度泛函理论探讨气敏机制，为今后研制开发检测POPs的高灵敏度测试仪器奠定材料技术基础和理论依据。

持久性有机污染物(POPs) 能够对生态环境和人类健康造成不可逆转的严重危害，因此对POPs的控制及其快速检测成为当前全球环境保护的热点之一。由于纳米气敏材料制作的气敏传感器具有灵敏度高、稳定性好、便于携带、价格便宜等优点，因此将纳米气敏材料技术与POPs的检测有机结合，不仅可以实现对POPs的高选择性的快速检测，同时也为纳米气敏材料的研制和开发拓展了新的用途。本项目采用水热/溶剂热法和微波辅助法等手段制备了具有特殊结构的纳米结构单元，利用纳米结构的特性与POPs分子的选择识别特征，实现功能纳米材料对POPs的高灵敏度快速检测；通过改善传统气敏元件的制作方法获得新型纳米气敏传感器；结合实验数据探讨气敏机制，为今后研制开发检测POPs的高灵敏度测试仪器奠定材料技术基础和理论依据。