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Metal ferrites nanoparticles for catalytic and photocatalytic ozonation in wastewater treatment: a review

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Abstract

The discharge of various pollutant-rich wastewater in large volumes without adequate treatment seriously endangers the environment. Catalytic and photocatalytic ozonation are the alternative methods to make the treated wastewater reusable. Here, we review the recent advances in metal ferrite nanoparticle catalysts, including the various preparation methods, characterisation techniques, catalytic mechanisms, and modification strategies. We discuss the current application of metal ferrites as ozone catalysts and the synergistic effect of catalytic and photocatalytic ozonation. The average pollutant removal efficiencies are 20–40% for non-catalytic ozonation, 80–98% for catalytic ozonation and 60–80% for photocatalytic ozonation using metal ferrite.

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Acknowledgements

The research was supported by the Research Management Centre of Universiti Malaysia Sabah (Grant No. SDK0016-2017) and is gratefully acknowledged.

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Research Management Centre of Universiti Malaysia Sabah Grant code: Grant No. SDK0016-2017.

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CKP Writing—original draft, CGJ Supervision, Writing—review & editing, Funding acquisition, Project administration; Yan Yan Farm: Writing – review & editing, JAG Writing—review & editing, SHT Writing—review & editing, YHT-Y Writing—review & editing, RKL Writing—review & editing. All authors have read and agreed to the published version of the manuscript.

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Correspondence to Collin G. Joseph.

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Pang, C.K., Joseph, C.G., Farm, Y.Y. et al. Metal ferrites nanoparticles for catalytic and photocatalytic ozonation in wastewater treatment: a review. Environ Chem Lett 21, 2953–2993 (2023). https://doi.org/10.1007/s10311-023-01630-1

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  • DOI: https://doi.org/10.1007/s10311-023-01630-1

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