Pillararene-Based Aggregation-Induced-Emission-Active Supramolecular System for Simultaneous Detection and Removal of Mercury(II) in Water
| Autor: | Ziyan Li, Lei Liu, Yao-Dong Huang, Hai-Chen Wu, Hong-Bo Cheng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science 010405 organic chemistry Supramolecular chemistry Tetraphenylethylene Polymer Pillararene 010402 general chemistry Photochemistry 01 natural sciences 0104 chemical sciences Supramolecular polymers chemistry.chemical_compound Monomer chemistry Organic chemistry Moiety Non-covalent interactions General Materials Science |
| Zdroj: | ACS Applied Materials & Interfaces. 9:11889-11894 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b00363 |
| Popis: | Supramolecular polymers are polymers based on monomeric units held together with directional and reversible noncovalent interactions. Compared with traditional polymers, they possess better processability and better recycling properties, owing to their reversible monomer-to-polymer transition. Herein, we report the construction of a new supramolecular system through self-assembly of a thymine-substituted copillar[5]arene 1 and a tetraphenylethylene (TPE) derivative 2 in the presence of Hg2+. Copillar[5]arene 1 can coordinate with Hg2+ tightly through T–Hg2+–T pairings. On the other hand, 1 can bind with guest molecule 2 through host–guest interactions between the pillararene cavity and the nitrile moiety of 2. These joint interactions generate crisscrossed networks composed of 1, 2, and Hg2+, which eventually wrap into spherical nanoparticles. Due to the aggregation-induced emission (AIE) properties of 2, the formed supramolecular polymer exhibits strong fluorescence which renders convenient the detection... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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