Superoxide Radical Driving the Activation of Persulfate by Magnetite Nanoparticles:Implications for the Degradation of PCBs

摘要

Increasing attention has been paid to sulfate radical due to its high efficiency for mineralization of organic pollutants.It has been demonstrated that the persulfate (PS) can be activated by UV,heat,base,or transition metals to generate SO4·-.However,only few studies have investigated the heterogeneous activation of PS by metal oxides,and the underlying mechanism was poorly understood.