Facile surface functionalization of MXene by pillar[5]arene for enhanced electrochemical performance.

A simple strategy was used to prepare functional two-dimensional materials via the combination of pillar[5]arene (P5) and MXene. The electrochemical results of MXene-P5 exhibit high supramolecular recognition, enrichment capability, and high electrochemical response toward dye molecules, which are probably due to the synergetic effects from high conductivity, high surface area, and host-guest recognition. This study provides a promising electrochemical sensing platform based on different kinds of pillararenes.