Synergistic effect of Ni-Ag-rutile TiO₂ ternary nanocomposite for efficient visible-light-driven photocatalytic activity.

ABSTRACT: P25 comprising of mixed anatase and rutile phases is known to be highly photocatalytically active compared to the individual phases. Using a facile wet chemical method, we demonstrate a ternary nanocomposite consisting of Ni and Ag nanoparticles, decorated on the surface of XTiO₂ (X: P25, rutile (R)) as an efficient visible-light-driven photocatalyst. Contrary to the current perspective, RTiO₂-based Ni-Ag-RTiO₂ shows the highest activity with the H₂ evolution rate of ∼86 μmol g^-1 W^-1 h^-1@535 nm. Together with quantitative assessment of active Ni, Ag and XTiO₂ in these ternary systems using high energy synchrotron X-ray diffraction, transmission electron microscopy coupled energy dispersive spectroscopy

SUBMITTER: Leukkunen PM 

PROVIDER: S-EPMC9057027 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature