Rapid capture of Ponceau S via a hierarchical organic–inorganic hybrid nanofibrous membrane†
Abstract
Hierarchical composite carbon nanofibrous membranes, comprising a high content of magnetic FeOx nanoparticles and an ultrathin PDA–PEI coating layer, were directly prepared using co-electrospun Fe3+/PAN precursors and dopamine self-polymerization. The obtained membranes have a great capture affinity towards Ponceau S with a short response time (20 min/96%) and high recycle stability.