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Heterogeneous Fenton catalysts: A review of recent advances
Open accessAbstract
Heterogeneous Fenton catalysts are emerging as excellent materials for applications related to water purification. In this review, recent trends in the synthesis and application of heterogeneous Fenton catalysts for the abatement of organic pollutants and disinfection of microorganisms are discussed. It is noted that as the complexity of cell wall increases, the resistance level towards various disinfectants increases and it requires either harsh conditions or longer exposure time for the complete disinfection. In case of viruses, enveloped viruses (e.g. SARS-CoV-2) are found to be more susceptible to disinfectants than the non-enveloped viruses. The introduction of plasmonic materials with the Fenton catalysts broadens the visible light absorption efficiency of the hybrid material, and incorporation of semiconductor material improves the rate of regeneration of Fe(II) from Fe(III). A special emphasis is given to the use of Fenton catalysts for antibacterial applications. Composite materials of magnetite and ferrites remain a champion in this area because of their easy separation and reuse, owing to their magnetic properties. Iron minerals supported on clay materials, perovskites, carbon materials, zeolites and metal-organic frameworks (MOFs) dramatically increase the catalytic degradation rate of contaminants by providing high surface area, good mechanical stability, and improved electron transfer. Moreover, insights to the zero-valent iron and its capacity to remove a wide range of organic pollutants, heavy metals and bacterial contamination are also discussed. Real world applications and the role of natural organic matter are summarised. Parameter optimisation (e.g. light source, dosage of catalyst, concentration of H2O2 etc.), sustainable models for the reusability or recyclability of the catalyst and the theoretical understanding and mechanistic aspects of the photo-Fenton process are also explained. Additionally, this review summarises the opportunities and future directions of research in the heterogeneous Fenton catalysis.
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“In this process, the photoirradiation can break the peroxobond (-O-O-) in the oxidants, such as H2O2, persulfates, and ozone (Equation (6)) [84-87].”
From Advanced Oxidation Processes for Degradation of Water Pollutants—Ambivalent Impact of Carbonate Species: A Review (2023) · cites this paper as [87]
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Metadata
- Authors
- Thomas, N., Dionysiou, D. D., & Pillai, S. C.
- Affiliations
- Institute of Technology Sligo (IE)
- University of Cincinnati (US)
- Corresponding author
- Pillai, Suresh C.
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2021-02
- Volume
- 404
- Issue
- Pt B
- Pages
- 124082
- ISSN
- 0304-3894 (ISSN-L)
- PMC
- PMC7530584
- OpenAlex
- W3090116547
- Cited by
- 889
- References
- 330
- Citations by year
- 2026: 151 · 2025: 165 · 2024: 152 · 2023: 187 · 2022: 164 · 2021: 65
- FWCI
- 5.43
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Hazardous Materials (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Research@THEA (submittedVersion, cc-by)
- Funders
- Horizon 2020
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
- Physical Sciences › Environmental Science › Environmental Engineering › Environmental remediation with nanomaterials
- Keywords
- heterogeneous Fenton catalyst, photo-Fenton process, organic pollutant degradation, SARS-CoV-2, plasmonic materials, metal-organic frameworks, zeolites, perovskite, zero-valent iron, heavy metal removal, natural organic matter, catalyst reusability, antibacterial materials
- MeSH terms
- Metal-Organic Frameworks, Catalysis, Disinfection, Humic Substances, Hydrogen Peroxide, Iron, Light, Minerals, Oxidation-Reduction, Photochemistry, Water Pollutants, Chemical, Reactive Oxygen Species, Water Purification, Wastewater
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