Two-dimensional layered carbon-based catalytic ozonation for water purification: Rational design of catalysts and an in-depth understanding of the interfacial reaction mechanism

Zilong Song; Jingyi Sun; Zhenbei Wang; Jun Ma; Yongze Liu; Francisco Javier Rivas; Fernando Juan Beltrán; Wei Chu; Didier Robert; Zhonglin Chen; Bingbing Xu; Fei Qi; Jolanta Kumirska; Ewa Maria Siedlecka; Amir Ikhlaq

doi:10.1016/j.scitotenv.2022.155071

Two-dimensional layered carbon-based catalytic ozonation for water purification: Rational design of catalysts and an in-depth understanding of the interfacial reaction mechanism

Sci Total Environ. 2022 Aug 1:832:155071. doi: 10.1016/j.scitotenv.2022.155071. Epub 2022 Apr 6.

Authors

Affiliations

¹ Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, PR China.
² State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
³ Departamento de Ingeniería Química y Química Física, Instituto Universitario de Investigación del Agua, Cambio climático y Sostenibilidad (IACYS), Universidad de Extremadura, 06006 Badajoz, Spain.
⁴ Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
⁵ Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS-UMR 7515-University of Strasbourg, Saint-Avold Antenna, Université de Lorraine, 12 rue Victor Demange, 57500 Saint-Avold, France.
⁶ State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China.
⁷ Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, PR China. Electronic address: qifei@bjfu.edu.cn.
⁸ Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Poland.
⁹ Institute of Environment Engineering and Research, University of Engineering and Technology, GT Road, 54890 Lahore, Punjab, Pakistan.

PMID: 35395298
DOI: 10.1016/j.scitotenv.2022.155071

Abstract

This review renewed insight into the existing complex and contradictory mechanisms of catalytic ozonation by two-dimensional layered carbon-based materials (2D-LCMs) for degradation toxic refractory organics in aqueous solution. Migration and capture of active electrons are central to catalytic ozonation reactions, which was not studied or reviewed more clearly. Based on this perspective, the catalytic ozonation potential of 2D-LCMs synthesized by numerous methods is firstly contrasted to guide the design of subsequent carbon based-catalysts, and not limited to 2D-LCMs. Matching ROS to active sites is a key step in understanding the catalytic mechanism. The structure-activity relationships between reported numerous active sites and ROS evolution is then constructed. Result showed that OH could be produced by -OH, -C=O, -COOH groups, defective sites, immobilized metal atoms, doped heteroatoms and photo-induced electrons; and O₂^- could be produced by -OH groups and sp²-bonded carbon. The normalized model further be used to visually compare the contribution degree of various regulatory methods to performance improvement. More importantly, this review calls for 2D-LCMs-based catalytic ozonation to be studied without circumventing the issue of structural stability, which would lead to many proposals of catalysts and its involved catalytic reaction mechanism being meaningless.

Keywords: Active centers; Catalytic ozonation; Electron transfer; Layered carbon materials; Water purification.

Publication types

Review

MeSH terms

Carbon
Catalysis
Ozone* / chemistry
Reactive Oxygen Species
Water Pollutants, Chemical* / analysis
Water Purification*

Substances

Reactive Oxygen Species
Water Pollutants, Chemical
Ozone
Carbon