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- Title
Recyclable Supramolecular Assembly‐Induced Emission System for Selective Detection and Efficient Removal of Mercury(II).
- Authors
Wang, Wei‐Ming; Dai, Dihua; Wu, Jia‐Rui; Wang, Chun‐Yu; Wang, Yan; Yang, Ying‐Wei
- Abstract
An efficient strategy for simultaneously detecting and removing Hg2+ from water is vital to address mercury pollution. Herein a supramolecular assembly G⊂H with photoluminescent properties is facilely constructed through the self‐assembly of a functional pillar[5]arene bearing two N,N‐dimethyldithiocarbamoyl binding sites (H) and an AIE‐active tetraphenylethene derivative (G). Remarkably, the fluorescence of G⊂H can be exclusively quenched by Hg2+ among the 30 cations due to the formation of non‐luminous ground state complex and only L‐cysteine can restore fluorescence in the common 20 amino acids. Meanwhile, the probe G⊂H has a considerable thermal and pH stability, a good anti‐interference property from various cations, and a satisfactory sensitivity. More importantly, G⊂H exhibits a prominent capability of Hg2+ removal with rapid capture rate (within 1 h) and excellent adsorption efficiency (98 %), as well as a highly efficient recyclability without losing any adsorption activity.
- Subjects
MERCURY; BINDING sites; AMINO acids; CYSTEINE; THERMAL stability
- Publication
Chemistry - A European Journal, 2021, Vol 27, Issue 46, p11879
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202101437