Novel bispillar[5]arene-based AIEgen and its' application in mercury(II) detection

作者：Lin, Qi^*; Jiang, Xiao-Mei; Ma, Xiao-Qiang; Liu, Juan^*; Yao, Hong; Zhang, You-Ming; Wei, Tai-Bao^*

来源：Sensors and Actuators B: Chemical , 2018, 272: 139-145.

DOI：10.1016/j.snb.2018.05.094

• AIE-based sensor
• AIEgens
• Bispillar[5] arene
• Mercury(II)
• Fluorescent display material

By connecting amide-functionalized pillar[5] arene with terephthalaldehyde through a condensation reaction, a novel AIEgen (QS) based on bispillar[5] arene was designed and synthesized, it showed strong aggregationinduced emission (AIE) in DMSO/H2O binary solutions and fluorescence quantum yield is 21%. The QS could act as an AIE-based sensor and sensitively fluorescent sense Hg2+ in water. The detection limit of QS for Hg2+ is 4.3x10(-8) M, moreover, other cations didn't interfere in the sensing processes. The Hg2+ sensing mechanism was based on coordination between Hg2+ and QS. Meanwhile, QS-based thin film was prepared, which could act as fluorescent display material and test kit for convenient detection mercury ions in water. In addition, the QS could efficiently separate Hg2+ in water for potential practical applications.

• 出版日期2018-11-1
• 单位西北民族大学; 西北师范大学