Mechanism of Photodegradation of Organic Pollutants in Seawater by TiO₂-Based Photocatalysts and Improvement in Their Performance.

ABSTRACT: The mechanism of photodegradation of organic pollutants in seawater by TiO₂-based catalysts irradiated by visible light was first explored by adding holes and free radical traps. The results showed that the photogenerated holes formed by the catalyst played a key role in the degradation of organic pollutants, regardless of whether the photodegradation occurred in seawater or pure water. Considering that the Yb-TiO₂-rGO catalyst has a strong adsorption for organics, the salt ion almost did not interfere with the adsorption of pollutants by Yb-TiO₂-rGO. Therefore, the degradation performance of Yb-TiO₂-rGO did not remarkably change in the two water systems. For P25-ZN with a weak adsorption capacity for organics, several salt ions in the seawater h

SUBMITTER: Xu H 

PROVIDER: S-EPMC8600626 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature