Band-gap engineering of porous BiVO4 nanoshuttles by Fe and Mo co-doping for efficient photocatalytic water oxidation

Journal Article (Journal Article)

Co-doping of metal ions in semiconductor photocatalysts is a promising strategy to promote photocatalytic activity due to its expected synergistic effects. In this study, we demonstrated the first synthesis of uniform Fe and Mo co-doped BiVO4 (Fe/Mo-BVO) porous nanoshuttles (PNSs) through a simple solvothermal method combined with a subsequent impregnation thermal treatment. It has been discovered that the incorporation of Fe and Mo into the BVO lattice not only influences the shuttle-like morphology and porous structure but also modifies the band structure of the pristine BVO; this consequently boosts the photocatalytic performance of BVO. The as-prepared Fe/Mo-BVO PNSs exhibit significantly enhanced photoactivity for water oxidation under visible-light irradiation, and an average O2 evolution rate of up to 191.5 μmol h-1 g-1 is obtained, which is nearly 1.5 and 17 times higher than the rates obtained for Mo-doped BVO and pristine BVO, respectively. Density functional theory (DFT) calculations were also employed to further investigate the electronic structure of the co-doped products.

Full Text

Duke Authors

Cited Authors

  • Liu, R; Ren, J; Zhao, D; Ning, J; Zhang, Z; Wang, Y; Zhong, Y; Zheng, C; Hu, Y

Published Date

  • December 1, 2017

Published In

Volume / Issue

  • 4 / 12

Start / End Page

  • 2045 - 2054

Electronic International Standard Serial Number (EISSN)

  • 2052-1553

Digital Object Identifier (DOI)

  • 10.1039/c7qi00588a

Citation Source

  • Scopus