Photocatalytic Properties of ZnO:Al/MAPbI3/Fe2O3 Heterostructure: First-Principles Calculations

Ahmed Al-Shami, Anass Sibari, Zouhir Mansouri, Majid El Kassaoui, Abdallah El Kenz, Abdelilah Benyoussef, Mohammed Loulidi, Mustapha Jouiad, Amine El Moutaouakil, Omar Mounkachi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We report on theoretical investigations of a methylammonium lead halide perovskite system loaded with iron oxide and aluminum zinc oxide ((Formula presented.)) as a potential photocatalyst. When excited with visible light, this heterostructure is demonstrated to achieve a high hydrogen production yield via a z-scheme photocatalysis mechanism. The (Formula presented.) : (Formula presented.) heterojunction plays the role of an electron donor, favoring the hydrogen evolution reaction (HER), and the (Formula presented.) compound acts as a shield against ions, preventing the surface degradation of (Formula presented.) during the reaction, hence improving the charge transfer in the electrolyte. Moreover, our findings indicate that the (Formula presented.) heterostructure effectively enhances electrons/holes separation and reduces their recombination, which drastically improves the photocatalytic activity. Based on our calculations, our heterostructure yields a high hydrogen production rate, estimated to be (Formula presented.) and (Formula presented.), respectively, for a neutral pH and an acidic pH of 5. These theoretical yield values are very promising and provide interesting inputs for the development of stable halide perovskites known for their superlative photocatalytic properties.

Original languageEnglish
Article number4856
JournalInternational journal of molecular sciences
Volume24
Issue number5
DOIs
Publication statusPublished - Mar 2023

Keywords

  • density functional theory
  • heterostructure
  • hydrogen evolution reaction
  • lead halide perovskite
  • photocatalysis
  • z-scheme mechanism

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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