Fig. 6

TEM micrographs of (a) Fe3O4 nanoparticle clusters, (b) RGO sheets, The Fe3O4@RGO hybrids’ TEM images were represented by panels (c–f) as MR10, MR20, MR30, and MR40, respectively.

TEM micrographs of (a) Fe3O4 nanoparticle clusters, (b) RGO sheets, The Fe3O4@RGO hybrids’ TEM images were represented by panels (c–f) as MR10, MR20, MR30, and MR40, respectively.