A novel multifunctional Ag and Sr²⁺ co-doped TiO₂@rGO ternary nanocomposite with enhanced p-nitrophenol degradation, and bactericidal and hydrogen evolution activity.

ABSTRACT: In the present study, a novel multifunctional Sr²⁺/Ag-TiO₂@rGO ternary hybrid photocatalyst was prepared via facile sol-gel and hydrothermal methods. The prepared catalyst was well characterized by UV-vis, XRD, Raman, HRTEM and XPS. The synthesized composite was utilised for p-NP degradation, E. coli disinfection and H₂ generation under visible light. The Sr²⁺/Ag-TiO₂@rGO catalyst showed enhanced photocatalytic H₂ evolution rate (64.3 μmol h^-1) compared with Ag-TiO₂@rGO (30.1 μmol h^-1) and TiO₂ (no activity). Nearly complete degradation of 15 mg l^-1 p-NP was achieved over Sr²⁺/Ag-TiO₂@rGO after 3 h, while only 66% and 5%

SUBMITTER: Wei X 

PROVIDER: S-EPMC9085905 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature