Design of functionalized fluorescent ionic liquid and its application for achieving significant improvements in Al^3t detecting

• 作者: Congmin Wang Jiachen Guo Jienan You Lu Gan Mingyang Wang Qiaoxin Xiao Siying Che
• 来源期刊: 绿色能源与环境:英文版
• 学科: 工学
• 关键词: Ionic liquid Fluorescent probe AL^3+ Significant improvements
• 年，卷（期）: 2020,（2）
• 页码范围: 195-202
• 页数: 8页
• 分类号: TG1

摘要

Specific fluorophore was introduced into ionic liquid based on its tunability,thus a kind of novel fluorescent ionic liquid probe[P66614][HQS]was designed,synthesized and characterized.Compared with non-fluorescent HQS,ionic liquid[P66614][HQS]emitted a certain amount of fluorescence,which could be attributed to the well-delocalized frontier orbitals and its charge transfer character,as demonstrated by quantum chemical calculation.Considering the interaction of[P66614][HQS]with metal ions,the application for detecting specific substance as a chemical sensor,such as Al3+was investigated.Compared with the traditional probe HQS,significant improvements in Al^3+detecting was achieved by[P66614][HQS]with stronger binding ability,better sensitivity and selectivity.The better performance of[P66614][HQS]was contributed to the changed charge distribution,leading to the stronger binding interaction.We believe that this new fluorescent ionic liquid exhibited unique properties in detecting Al^3+in aqueous solution,which would broaden the application of ionic liquids.