Hydrothermal in situ synthesis of Rb and S co-doped Ti-based TiO₂ sheet with a thin film showing high photocatalytic activities.

ABSTRACT: TiO₂ is considered as one of the most promising semiconductor photocatalysts used to degrade organic pollutants. Element doping has a good effect on improving the properties of TiO₂. Herein, by using Rb₂SO₄, we explored the in situ synthesis of Ti-based TiO₂ sheets with a thin film through a hydrothermal reaction. Then, the photocatalyst was successfully fabricated by calcination. All samples were characterized by FT-IR, XRD, SEM, XPS, PL and UV-vis DRS measurements. The results indicate that the S doping together with surface hydroxyl groups lead to the band gap narrowing. S and a trace amount of Rb element can enable the formation of uniform microspheres on the surface of the Ti plate and the major phase transformed from titan

SUBMITTER: Wang Y 

PROVIDER: S-EPMC9078943 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature