Visible-light-induced photo-Fenton process for the facile degradation of metronidazole by Fe/Si codoped TiO₂.

ABSTRACT: This work investigated the feasibility and efficiency of a heterogeneous photo-Fenton catalyst, Fe/Si codoped TiO₂, for the degradation of metronidazole (MNZ) under visible light irradiation. The Fe/Si codoped TiO₂ was prepared via a facile and simple sol-gel solvothermal process followed by annealing at 480 °C for 4 hours. High resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) measurements revealed that the photo-Fenton process did not change the structure, textural and surface morphologies of this catalyst. Elemental mapping results indicated the good dispersion of Fe and Si ions in TiO₂. Nitrogen adsorption and desorption measurements indicated that Si doping increased the surface area of the catalysts.

SUBMITTER: Du W 

PROVIDER: S-EPMC9091309 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature