Research progresses on the application of perovskite in adsorption and photocatalytic removal of water pollutants

Lei Huang, Xuanjie Huang, JIA YAN, Yonghui Liu, Hao Jiang, Qiang Liu, Hongguo Zhang, Jinfeng Tang

Research output: Journal article publicationReview articleAcademic researchpeer-review

85 Citations (Scopus)

Abstract

The problem of global water pollution and scarcity of water resources is becoming increasingly serious. Multifunctional perovskites can well drive adsorption and photocatalytic reactions to remove water pollutants. There are many advantages of perovskites, such as abundant oxygen vacancies, easily tunable structural morphology, stable crystal state, highly active metal sites, and a wide photo response range. However, there are few reviews on the simultaneous application of perovskite to adsorption and photocatalytic removal of water pollutants. Thus, this paper discusses the preparation methods of perovskite, the factors affecting the adsorption of water environmental pollutants by perovskite, and the factors affecting perovskite photocatalytic water pollutants. The particle size, specific surface area, oxygen vacancies, electron-hole trapping agents, potentials of the valence band, and conduction band in perovskites are significant influencing factors for adsorption and photocatalysis. Strategies for improving the performance of perovskites in the fields of adsorption and photocatalysis are discussed. The adsorption behaviors and catalytic mechanisms are also investigated, including adsorption kinetics and thermodynamics, electrostatic interaction, ion exchange, chemical bonding, and photocatalytic mechanism. It summarizes the removal of water pollutants by using perovskites. It provides the design of perovskites as high-efficiency adsorbents and catalysts for developing new technologies.

Original languageEnglish
Article number130024
JournalJournal of Hazardous Materials
Volume442
DOIs
Publication statusPublished - 15 Jan 2023

Keywords

  • Adsorption
  • Perovskites
  • Photocatalysis
  • Wastewater

ASJC Scopus subject areas

  • Pollution
  • Waste Management and Disposal
  • Health, Toxicology and Mutagenesis
  • Environmental Engineering
  • Environmental Chemistry

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