Release time:2021-03-15  Hits:

• Abstract:Fe3O4 nanoparticles were synthesized on graphene oxide (GO), then mixed with polyethylenimine to obtain GO/Fe3O4/PEI nanocomposites. Due to the high surface area of GO, superparamagnetism of Fe3O4, and excellent complex ability of PEI, the nanocomposites showed extremely high Cu2+ removal efficiency. The Cu2+ removal capacity was 157 mg g(-1), which is higher than most reported results. The adsorption kinetics could be best described by a pseudo-second-order model. Moreover, GO/Fe3O4/PEI nanocomposites could be easily recycled by magnetic separation. After five cycles, the removal efficiency remained 84%.
• Volume:5
• Issue:1
• Translation or Not:no