Fig. 2

A X-ray diffraction (XRD) patterns of pristine Ti₃AlC₂ and Ti₃C₂T_x. B Scanning electron microscopy (SEM) image of a Ti₃C₂T_x monolayer under low magnification. C High-resolution transmission electron microscopy image of a Ti₃C₂T_x nanosheet and the corresponding selected area electron diffraction pattern. D Scanning TEM (STEM) coupled with energy dispersive X‐ray spectroscopy (EDX) of a Ti₃C₂T_x nanosheet. E XRD patterns of ZnO nanorod arrays with hexagonal wurtzite structure (Joint Committee on Powder Diffraction Standards card no. 36–1451). F SEM image of the ZnO nanorod array without Ti₃C₂T_x, and SEM images after drop-casting 4 µL of G 1 mg/mL, H 1.5 mg/mL, and I 2 mg/mL Ti₃C₂T_x solutions on the ZnO nanorod array, the inset is a sectional view of ZnO/Ti₃C₂T_x. J Illustration of the ZnO/Ti₃C₂T_x substrate fabrication process