Fig. 5 shows the magnetization curve of Fe3O4 obtained by
VSM at 250C. The saturation magnetization of Fe3O4
nanoparticles was 89.46 emu g-1. The magnetization of Fe3O4
is not far from the actual magnetization of the Fe3O4 is 92
emu g-1 [19]. The excellent magnetic responsivity was
necessary for magnetic separation from dye-containing
effluents in the future.