Figure 3

SEM–EDS element mapping for Fe2O3/PBSA composites at (a) 4 vol.%, (b) 46 vol.%, and for Fe3O4 (100 nm)/PBSA composites at (c) 4 vol.%, (d) 40 vol.% showing the distribution of Fe (red).
SEM–EDS element mapping for Fe2O3/PBSA composites at (a) 4 vol.%, (b) 46 vol.%, and for Fe3O4 (100 nm)/PBSA composites at (c) 4 vol.%, (d) 40 vol.% showing the distribution of Fe (red).