In this study,the composite Fe-Mn/ACF electrode was prepared,and then characterized by scanning electron microscopy(SEM) and energy disperse spectroscopy(EDS) for its microstructure and composition.After that,it was adopted into a bio-electro-Fenton system as a heterogeneous Fenton catalyst provider without external power supply,so as to investigate its catalytic performance on the removal of Reactive Brilliant Blue KN-R in aqueous solution at different initial pH and concentration,respectively.The results ...