All-solid-state Z-scheme BiVO4−Bi6O6(OH)3(NO3)3 heterostructure with prolonging electron-hole lifetime for enhanced photocatalytic hydrogen and oxygen evolution

Wuyou Wang, Xuewen Wang, Lei Gan, Xinfei Ji, Zili Wu, Rongbin Zhang

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19 Scopus citations

Abstract

As a visible-light response photocatalyst, BiVO4 is widely used in photocatalytic oxygen evolution. In this study, a novel BiVO4−Bi6O6(OH)3(NO3)3 (BBN) heterostructure fabricates via a simple one-pot hydrothermal approach is certified to effectively restrain the recombination of carriers by efficient spatial charge separation. By employing BBN as a reductive-function photocatalyst, a solid-state Z-scheme is constructed to improve the photo-redox capacity of BiVO4 and hydrogen production is realized in the BiVO4−BBN heterostructure for the first time. The solid-state Z-scheme introduced in the BiVO4−BBN ensures the photoexcited carriers with the powerful redox capacity to participate in the photocatalytic reaction.

Original languageEnglish
Pages (from-to)117-125
Number of pages9
JournalJournal of Materials Science and Technology
Volume77
DOIs
StatePublished - Jun 30 2021

Keywords

  • BiVO−BBN
  • Hydrogen
  • Oxygen
  • Photocatalysis
  • Solid-state Z-scheme

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