Polydopamine-mediated surface functionalization of electrospun nanofibrous membranes: Preparation, characterization and their adsorption properties towards heavy metal ions

- A simple and versatile approach to produce PEI-functionalized nanofibers.
- Novel PEI-functionalized PVC nanofibrous membrane was prepared.
- Adsorption of PVC@PDA and PVC@PDA-PEI nanofibrous membranes for Cu2+ was tested.
- Isotherms, kinetic model and thermodynamic parameters were investigated.
- Adsorption mechanism of Cu2+ on modified membranes was inferred.