TiO2 and N-TiO2 Sepiolite and Zeolite Composites for Photocatalytic Removal of Ofloxacin from Polluted Water.

ABSTRACT: TiO2 sepiolite and zeolite composites, as well the corresponding N-doped composites, synthesized through a sol-gel method, were tested for the photocatalytic degradation of a widespread fluoroquinolone antibiotic (ofloxacin) under environmental conditions. The catalysts were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), and diffuse reflectance spectroscopy (DRS) analyses. A complete drug degradation occurred in 10-15 min in the presence of both TiO2 sepiolite and zeolite catalysts, and in 20-30 min with the N-doped ones. Sepiolite proved to be a better TiO2 support compared to the most common zeolite both in terms of adsorption capacity and photocatalytic efficiency in pollutants degradation. The influence of nitrogen doping (re

SUBMITTER: Sturini M 

PROVIDER: S-EPMC7040821 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature