Impact of TiO₂ Reduction and Cu Doping on Bacteria Inactivation under Artificial Solar Light Irradiation.

ABSTRACT: Preparation of TiO₂ using the hydrothermal treatment in NH₄OH solution and subsequent thermal heating at 500-700 °C in Ar was performed in order to introduce some titania surface defects. The highest amount of oxygen vacancies and Ti³⁺ surface defects were observed for a sample heat-treated at 500 °C. The presence of these surface defects enhanced photocatalytic properties of titania towards the deactivation of two bacteria species, E. coli and S. epidermidis, under artificial solar lamp irradiation. Further modification of TiO₂ was targeted towards the doping of Cu species. Cu doping was realized through the impregnation of the titania surface by Cu species supplied from various copper salts in an aqueous solution and the subsequen

SUBMITTER: Rychtowski P 

PROVIDER: S-EPMC9784163 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature