Nanofibrous membrane of graphene oxide-in-polyacrylonitrile composite with low filtration resistance for the effective capture of PM2.5

A highly effective and low filtration resistance graphene oxide/polyacrylonitrile (GOPAN) membrane is designed and prepared via an electrospinning method and used as the air filter. The PM2.5 filtration performance of GOPAN membrane is substantially improved compared with PAN thanks to the olive-like beads-on-a-string structure and high specific surface area.325