Reconstruction of Electronic Structure of MOF-525 via Metalloporphyrin for Enhanced Photoelectro-Fenton Process

Photoelectro-Fenton (PEF) process can continuously promote the occurrence of Fenton reaction and generation active species, which is an advanced oxidation technology for pollutant degradation. However, lack bifunctional catalysts restricts development PEF technology. In this study, electronic rearrangement MOF-525 modified by metalloporphyrin (named MOF-525-Fe/Zr) was prepared, to load on carbon felt as a novel cathode catalyst, used in process. A series characterization photoelectric chemical properties tests combined with DFT calculation showed that modification could not only have large specific surface area multistage pore structure but also co-stimulate metal-to-ligand charge transfer (MLCT) ligand-to-cluster (LCCT) synergy. These transitions provide periodic electron donor-acceptor conduction paths MOF-525-Fe/Zr, improve species formation efficiency. Owing their favorable well stability, MOF-525-Fe/Zr shows great promise application catalytic PEF. Sulfamethoxazole (SMX) degradation enhanced TOC removal rate above 75% both river water tap water. Finally, reasonable pathway SMX proposed HPLC-MS analysis. conclusion, study provides new idea reconstructing MOFs catalyst broadening practical