Lattice Distortion Engineering over Ultrathin Monoclinic BiVO4 Nanoflakes Triggering AQE up to 69.4% in Visible-Light-Driven Water Oxidation

Davin Philo, Shunqin Luo, Can He, Qi Wang, Fumihiko Ichihara, Lulu Jia, Mitsutake Oshikiri, Hong Pang, Yan Wang, Sijie Li, Gaoliang Yang, Xiaohui Ren, Huiwen Lin*, Jinhua Ye*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

An efficient water oxidation photocatalyst is imperative for the realization of artificial photosynthesis. Herein, a cooperative strategy is represented that enables 2D structure tailoring and lattice distortion engineering simultaneously over a BiVO4 photocatalyst for efficient visible-light-driven oxygen evolution reaction (OER). Specifically, the lattice distortion engineering is achieved through the introduction of a sodium (Na+) additive during the ion exchange process. Structural characterizations suggest the formation of ultrathin 2D monoclinic BiVO4 nanoflakes with shrank V-O and elongated BiO bonds. Mechanistic investigations reveal the advantages of ultrathin 2D features for exposing more (010) active facets and shortening the required migration distance for charge carriers to reach the catalytic surface. More importantly, the lattice distortion effect is found to crucially govern the charge carrier dynamics and catalytic surface behavior of BiVO4 photocatalyst, endowing the optimized sample with an outstanding photocatalytic OER performance triggering up to 69.4% apparent quantum efficiency over Fe3+ sacrificial solution. These findings highlight the functional application of morphology and dimensional modification, as well as lattice distortion engineering in synthesizing superior monoclinic BiVO4 photocatalyst for efficient visible-light-driven water oxidation.

Original languageEnglish (US)
Article number2206811
JournalAdvanced Functional Materials
Volume32
Issue number45
DOIs
StatePublished - Nov 3 2022

Bibliographical note

Funding Information:
D.P. and S.L. contributed equally to this work. This work was financially supported by JSPS KAKENHI (JP18H02065), the World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitectonics (MANA), MEXT (Japan), Photo-excitonix Project in Hokkaido University, and State Scholarship fund by Indonesia Endowment Fund for Education (LPDP, 201708220111430). The calculations in this study were performed on the Numerical Materials Simulator at the NIMS.

Funding Information:
D.P. and S.L. contributed equally to this work. This work was financially supported by JSPS KAKENHI (JP18H02065), the World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitectonics (MANA), MEXT (Japan), Photo‐excitonix Project in Hokkaido University, and State Scholarship fund by Indonesia Endowment Fund for Education (LPDP, 201708220111430). The calculations in this study were performed on the Numerical Materials Simulator at the NIMS.

Publisher Copyright:
© 2022 Wiley-VCH GmbH.

Keywords

  • lattice distortion
  • monoclinic BiVO
  • Na additive
  • photocatalytic water oxidation
  • ultrathin 2D structures

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Chemistry
  • Biomaterials
  • General Materials Science
  • Condensed Matter Physics
  • Electrochemistry

Fingerprint

Dive into the research topics of 'Lattice Distortion Engineering over Ultrathin Monoclinic BiVO4 Nanoflakes Triggering AQE up to 69.4% in Visible-Light-Driven Water Oxidation'. Together they form a unique fingerprint.

Cite this