Abstract
AbstractIn industrial production, the continuous, efficient and energy‐saving separation of alkylaromatic compounds has always been a challenge. Herein, we designed and synthesized the functional pillararene (TP5A) via a thiol‐alkene click reaction. We modified TP5A molecules into the surface of anodic aluminum oxide nanochannels via a simple two‐step condensation reaction for fabricating TP5A channel, confirming by the X‐ray photoelectron spectroscopy, contact angle, laser scanning confocal microscopy, energy‐dispersive X‐ray spectroscopy, Fourier transform infrared spectroscopy and current‐voltage curves. This biomimetic nanochannels can be used to separate para‐xylene from its structural isomers. We speculate that the host‐guest interaction between TP5A and para‐xylene is responsible for the emergence of selectivity, confirmed by the molecular simulation. This study provides a potential approach to membrane separation and may also contribute to the development of artificial nanofluids.
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