Figure 3

TEM images (0.5 µm and 100 nm bar scales) of the used iron–nickel alloys; starfish-like Fe10Ni90 (A) and necklace-like Fi20Ni80 (B). Photos of the Blank PES (C) and the magnetic mixed matrix PES membranes; (D) Fe10Ni90 and (E) Fi20Ni80, and Photos of the prepared epoxy blocks contained the fabricated magnetic mixed matrix PES membranes (blank PES; F, mixed matrix PES membranes; G,H). TEM images (100 nm bar scale) of the blank PES (I) and the mixed matrix PES membranes (J,K) inside the epoxy blocks.