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Fluorogenic Thorium Sensors Based on 2,6‐Pyridinedicarboxylic Acid‐Substituted Tetraphenylethenes with Aggregation‐Induced Emission Characteristics
Author(s) -
Wen Jun,
Dong Liang,
Hu Sheng,
Li Weiyi,
Li Shuo,
Wang Xiaolin
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201500834
Subject(s) - aggregation induced emission , thorium , fluorescence , lanthanide , naked eye , actinide , alkali metal , selectivity , metal ions in aqueous solution , chemistry , interference (communication) , metal , ion , materials science , photochemistry , inorganic chemistry , optics , organic chemistry , computer science , catalysis , telecommunications , physics , metallurgy , channel (broadcasting) , uranium
A novel fluorescent sensor based on tetraphenylethene (TPE) modified with 2,6‐pyridinedicarboxylic acid (PDA) that shows aggregation‐induced emission (AIE) characteristics for thorium recognition with remarkable fluoresence enhancement response has been synthesized. This sensor is capable of visually distinguishing Th 4+ among lanthanides, transition metals, and alkali metals under UV light. Th 4+ can be detected by the naked eye at ppb levels owing to the AIE phenomenon. The sensor showed high selectivity for Th 4+ compared to all other metals tested, and this recognition displayed good anti‐interference qualities. This study represents the first application of a AIE fluorescence sensor in actinide metal recognition and it has potential applications in environmental systems for thorium ion detection.