Polyacrylonitrile/manganese acetate composite nanofibers and their catalysis performance on chromium (VI) reduction by oxalic acid

► We have successfully prepared PAN/Mn(CH3COO)2 composite nanofibers. ► The nanofibers exhibit excellent catalysis performance for Cr(VI) reduction. ► The nanofibers are effective and environment-friendly materials to remove Cr(VI).