fig3
Figure 3. (A and B) SEM images, (C) TEM image, (D) schematic diagram of mPDA/MXene heterogeneous nanosheets. This figure is quoted with permission from Li et al.[83]. DA: dopamine; PDA: polydopamine; SEM: scanning electron microscopy; TEM: transmission electron microscopy; mPDA: mesoporous polydopamine.
