Heterogeneous activation of peroxymonosulfate by amorphous boron for degradation of bisphenol S

•Amorphous boron exhibited outstanding catalytic activity and superior stability for peroxymonosulfate activation.•Effective degradation of bisphenol S was achieved in the amorphous boron/peroxymonosulfate oxidative system.•The corresponding catalytic oxidation mechanism was elucidated.