[Effectivity of Multiphase Fenton-like System of Iron Reduction Induced by Bisphenol A Authigenic Photoelectron].

In recent years, the Fenton-like (Fe-PMS/PS) advanced oxidation technology of persulfate activated by ferrous ions has been increasingly developed, but the difficulty of Fe reduction, which stops the reaction, still restricts its large-scale application. In this study, it was found that when some organic compounds represented by bisphenol A (BPA) were mixed with Fe and pristine TiO, some surface structures could broaden the light response range of TiO, capture visible light, and transfer the photoelectrons to Fe through TiO for reduction, so as to achieve an infinite cycle of Fe/Fe. According to the above principle, a BPA-TiO-Fe-PS composite system under visible light was constructed to degrade BPA, and its catalytic performance, catalytic mechanism, and influencing factors were discussed.