项目名称： 由阴离子诱导对二氧化碳的吸收和释放具有多重响应的有机凝胶体系的研究

项目编号： No.21502040

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 张欣

作者单位： 河北师范大学

项目金额： 21万元

中文摘要： 由温室效应导致的全球气候变暖引发的如雾霾频发等环境问题一直困扰着人们，为了改善这一现状，对主要温室气体二氧化碳的监测和控制排放显得尤为重要。但是目前常用的手段却不能满足对二氧化碳气体的实时监测和控制排放的要求。荧光分子传感器和智能型凝胶因子虽然对被分析物分别具有定量分析和可视性传感能力，但是同时具备这两种功能并对二氧化碳具有吸收和释放功能的凝胶体系却鲜有报道。因此本项目将设计一系列结构新颖的基于分子内电荷转移、聚集诱导发光和激基缔合物形成机理的凝胶因子，探索这些凝胶材料在阴离子诱导下对二氧化碳气体的吸收效率，并利用荧光和凝胶可视性手段对二氧化碳的吸收机理进行分析。通过以上研究，将揭示凝胶因子的分子结构、溶剂的选择、阴离子的用量及水分与二氧化碳吸收与释放效果的关系，为同类型凝胶因子的设计提供依据。

中文关键词： 有机纳米结构；光物理性质；激基缔合物

英文摘要： Several environmental issues caused by global climate warming due to green-house effect have been besetting people. In view of this situation, monitoring and control of the emission of carbon dioxide, which is the major green-house gas, are of great importance. However, the current techiques can not address the demand of the real-time analysis and emission control of carbon dioxide gas. .Fluorescence molecular sensor and smart gelator can offer the quantitative analysis and visual sensing means, respectively. However, the capturing and releasing gelation system for carbon dioxide that possesses both of these two abilities is rarely reported. To this end, we will devise a series of novel gelators based on ICT, AIE and excimer formation mechanisms, and investigate the optical and gel-based visual sensing abilities of these gelators for the capture and release of carbon dioxide gas. On the basis of these studies, the relationship between the carbon dioxide capture effect and gelator structure, choice of gelation solvents, the used amount of anion, and water amount will be revealed, which will render the direction for the design of the similar gelaton systems.

英文关键词： organic nanostructure;optical physics property;excimer