Figure 2

TEM images of (a) A-ATP@Fe3O4; (b) HAADF-STEM images of A-ATP@Fe3O4; (c–g) the corresponding EDX elemental mapping of aluminum, magnesium, silicon, iron, oxygen.

TEM images of (a) A-ATP@Fe3O4; (b) HAADF-STEM images of A-ATP@Fe3O4; (c–g) the corresponding EDX elemental mapping of aluminum, magnesium, silicon, iron, oxygen.