One-step synthesis of novel Fe/Fe3O4 embedded in N-doped graphite-like carbon nanosheets with the entangled CNTs to activate peroxymonosulfate for bisphenol a degradation

•Fe/Fe3O4 embedded in N-doped graphite-like carbon nanosheets with the entangled CNTs (Fe@CN-Ala) was prepared by a simple one-step pyrolysis.•Fe@CN-X showed structure-dependent PMS activation capacity.•Fe@CN-Ala/PMS system exhibited an outstanding removal capacity for BPA and was easy to revered owing to its magnetic properites.•Non-radical pathway (1O2 and electron transfer) was primarily degradation pathway.