N-Rich Doped Anatase TiO₂ with Smart Defect Engineering as Efficient Photocatalysts for Acetaldehyde Degradation.

ABSTRACT: Nitrogen (N) doping is an effective strategy for improving the solar-driven photocatalytic performance of anatase TiO₂, but controllable methods for nitrogen-rich doping and associated defect engineering are highly desired. In this work, N-rich doped anatase TiO₂ nanoparticles (4.2 at%) were successfully prepared via high-temperature nitridation based on thermally stable H₃PO₄-modified TiO₂. Subsequently, the associated deep-energy-level defects such as oxygen vacancies and Ti³⁺ were successfully healed by smart photo-Fenton oxidation treatment. Under visible-light irradiation, the healed N-doped TiO₂ exhibited a ~2-times higher activity of gas-phase acetaldehyde degradation than the non-treated one and even bette

SUBMITTER: Wei M 

PROVIDER: S-EPMC9105496 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature