Fabrication of poly(o-phenylenediamine)/reduced graphene oxide composite nanosheets via microwave heating and their effective adsorption of lead ions

- PoPD/RGO composite nanosheets were obtained by a one-step microwave heating method.
- In the in-situ redox reaction, GO was reduced to RGO, whereas oPD was polymerized.
- A layer-like structure of PoPD was uniformly coated on the surface of the RGO.
- The as-prepared materials were evaluated as potential Pb(II) ion adsorbents.
- The maximal adsorption capacity of Pb(II) ions was about 228 mg g−1.