项目名称: 基于磷光共轭聚合物修饰二氧化硅室温磷光传感材料的爆炸物传感器
项目编号: No.21275104
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 数理科学和化学
项目作者: 肖丹
作者单位: 四川大学
项目金额: 80万元
中文摘要: 本项目拟主要采用溶胶-凝胶法制备以二氧化硅为基体的纳米室温磷光材料并在其上面修饰磷光共轭聚合物制备高灵敏度的室温磷光爆炸物传感器。在二氧化硅基体中通过修饰不同的磷光共轭聚合物,使得修饰聚合物与二氧化硅发生化学键的作用,得到一系列发光强、寿命长的以二氧化硅为基体的纳米室温磷光复合材料,作为标记物用于爆炸物的示踪与分析,为爆炸物分子分析提供强发光的室温磷光标记材料。通过多种检测和表征手段,研究该复合材料的室温磷光发光机理并总结出不同修饰聚合物对爆炸物检测的灵敏度异同,使得通过修饰不同的磷光共轭聚合物合成的系列室温磷光材料的发射光谱覆盖整个可见光区并用于不同成分爆炸物的传感,制备出多种选择性好、灵敏度高的可视室温磷光传感器,从而推测出爆炸物的分子浓度。
中文关键词: 化学与生物传感器;室温磷光;纳米材料;二氧化硅;爆炸物
英文摘要: In this project, higher sensitivity chemical and biological sensors based on roomtemperature phosphorescence nano-silica composites by modification of phosphorescent conjugated polymers were developed. Doping different modification of phosphorescent conjugated polymers in the silica composites, a series of nano-silica roomtemperature phosphorescence materials with strong emission and long life would be obtained, because of its excellent chemical compatibility, could be used as signing of explosive molecules in tracing and analysis.The emission mechanism of silica composites and summed up the differences and similarities of different modified polymers for explosives detection sensitivity will be investigated by various methods of detection and characterization. The ranges of emission wavelength of silica composites doped with different phosphorescent conjugated poluymers will cover the wavelength of visible light.It will be used for the preparation of room-temperature phosphorescence sensors with high sensitivity, excellent selectivity and visual. Thus we can speculate that the concentration of molecules of explosives.
英文关键词: Chemical/biological sensor;room-temperature phosphorscence;nanomaterial;SiO2;explosive