A novel electrochemical sensor for glucose detection based on a TiCT /ZIF-67 nanocomposite.

A TiCT /ZIF-67 nanocomposite with outstanding conductivity has been prepared by loading ZIF-67 onto a two-dimensional TiCT nanosheet. TiCT sheets were synthesized by etching TiAlC, and then ZIF-67 was grown on the TiCT nanosheet. The TiCT /ZIF-67 nanocomposite exhibits excellent detection performance for glucose, with a low LOD of 3.81 μM and wide linear detection range of 5-7500 μM. This terrific result is contributed by the synergistic effect of the high electrically conductive ability of TiCT and active catalytic performance of ZIF-67. Moreover, the electrochemical sensor prepared using the TiCT /ZIF-67 nanocomposite also shows excellent selectivity, stability and repeatability for glucose detection. The TiCT /ZIF-67 nanocomposite with outstanding performance has potential applications for electrochemical sensors.