Evaluation of bio-fenton oxidation approach for the remediation of trichloroethylene from aqueous solutions

Ravi, Shobana; Lonappan, Linson; Touahar, Imad E.; Fonteneau, Émeline; Vaidyanathan, Vinoth Kumar; Cabana, Hubert

doi:10.1016/j.jenvman.2020.110899

Cited by 15 publications

(4 citation statements)

References 46 publications

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“…Dissolved organic matter (DOM) in natural water, similarly, can act as a radical scavenger, limiting the number of reactive species available for substrate oxidation and leading to a decrement in pollutant degradation [301]. This kind of competition was also observed by Ravi et al, who reported a reduction in trichloroethylene degradation by the Bio-Fenton reaction carried out with free GOx in groundwater [201].…”

Section: Product Characterization Toxicity and Influence Of Environme...mentioning

confidence: 71%

“…In general, applying remediation strategies to real conditions means considering the influence of all the environmental factors that are intrinsic to the complexity of real systems, such as the co-presence of ions and organic matter in water matrices that can compete with the target chemical pollutants [201,297,298].…”

Section: Product Characterization Toxicity and Influence Of Environme...mentioning

confidence: 99%

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An Overview of Environmental Catalysis Mediated by Hydrogen Peroxide

Rigoletto,

Laurenti,

Tummino

2024

Catalysts

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The use of hydrogen peroxide (produced in situ or ex situ) as the main agent in oxidative processes of environmental pollutant removal is widely studied. The degradation of water pollutants, such as dyes, pharmaceuticals, cosmetics, petroleum derivatives, and even pathogens, has been successfully obtained by different techniques. This review gives an overview of the more recent methods developed to apply oxidative processes mediated by H2O2 and other reactive oxygen species (ROS) in environmental catalysis, with particular attention to the strategies (Fenton-like and Bio-Fenton, photo- and electro-catalysis) and the materials employed. A wide discussion about the characteristics of the materials specifically studied for hydrogen peroxide activation, as well as about their chemical composition and morphology, was carried out. Moreover, recent interesting methods for the generation and use of hydrogen peroxide by enzymes were also presented and their efficiency and applicability compared with the Fenton and electro-Fenton methods discussed above. The use of Bio-Fenton and bi-enzymatic methods for the in situ generation of ROS seems to be attractive and scalable, although not yet applied in full-scale plants. A critical discussion about the feasibility, criticalities, and perspectives of all the methods considered completes this review.

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Section: Product Characterization Toxicity and Influence Of Environme...mentioning

confidence: 71%

Section: Product Characterization Toxicity and Influence Of Environme...mentioning

confidence: 99%

An Overview of Environmental Catalysis Mediated by Hydrogen Peroxide

Rigoletto,

Laurenti,

Tummino

2024

Catalysts

View full text Add to dashboard Cite

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“…Although these strategies can efficiently remove mycotoxins, they usually need specific equipment and have high energy consumption. Fenton reaction that employs hydrogen peroxide (H 2 O 2 ) and ferromagnetic nanoparticles (NPs) to produce hydroxyl radicals (OH • ) is an efficient and facile way to generate reactive oxygen species and has been applied extensively in the degradation of various organic pollutants. − However, the Fenton reaction has a limitation on working below pH 3.0 for efficiency because an acidic environment is required for the stable Fe 2+ /Fe 3+ transformation. In addition, a high concentration of H 2 O 2 is often required in the Fenton reaction.…”

Section: Introductionmentioning

confidence: 99%

Co-Immobilization of Enzymes and Metals on the Covalent-Organic Framework for the Efficient Removal of Mycotoxins

Dai

et al. 2023

ACS Appl. Mater. Interfaces

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Mycotoxin is an important contaminant in food and the environment. The conventional methods for detoxification of mycotoxins are plagued by high chemical consumption, secondary pollution, and specific equipment required. In this study, we propose a chemoenzymatic cascade reaction for mycotoxin removal in an effective and green manner using an enzyme-metal hybrid catalyst synthesized by compartmental coimmobilized glucose oxidase (GOx) and Fe 3 O 4 nanoparticles (NPs) on a flower-shaped covalent organic framework (COF). The GOx-Fe 3 O 4 @COF hybrid catalyst exhibits excellent activity in mycotoxin removal due to the enrichment of mycotoxins in COF and the cooperative catalysis between GOx and Fe 3 O 4 NPs. The degradation efficiency of aflatoxin B 1 (AFB 1 ) in the chemoenzymatic cascade reaction catalyzed by GOx-Fe 3 O 4 @ COF is 3.5 times higher than that in the Fenton reaction catalyzed by Fe 3 O 4 @COF. The GOx-Fe 3 O 4 @COF hybrid catalyst is highly active in a wide pH range of 3.0−7.0, overcoming the limitation of the Fenton reaction that can only perform below pH 3.0. This study provides a powerful tool for the efficient removal of mycotoxins.

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“…7,8 While traditional homogeneous Fenton oxidation process typically requires an acidic pH of approximately 3.0-4.0 and the efficiency diminished in near neutral water bodies. 9 Meanwhile, H 2 O 2 is caustic and explosive, posing a relatively large safety hazard in the process of storage, transportation and application. 10 Besides, H 2 O 2 is highly unstable and readily decomposes in the environment, resulting in low utilization in practice.…”

Section: Introductionmentioning

confidence: 99%