Three-dimensional heterogeneous Electro-Fenton system with a novel catalytic particle electrode for Bisphenol A removal

Zhang, Yimei; Chen, Zhuang; Wu, Panpan; Duan, Yaxiao; Zhou, Lincheng; Lai, Yuxian; Wang, Fei; Li, Shuai

doi:10.1016/j.jhazmat.2019.03.067

Cited by 129 publications

(32 citation statements)

References 44 publications

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“…High H 2 O 2 concentrations of 495 mg L −1 were achieved to give a mineralisation rate of 80% over 80 min. Gas diffusion electrodes have also been fabricated by combining rGO with Fe 3 O 4 [7] and by using boron-doped graphene-based aerogels [100] for the removal of Bisphenol A. The combination of available Fe 3 O 4 particles adjacent to the electrogenerated H 2 O 2 facilitated the efficient generation of OH • and the removal of Bisphenol A [7].…”

Section: Three-dimensional Graphene-modified Electrodesmentioning

confidence: 99%

“…These processes range from UV irradiation and ozonation to electrochemical oxidation [1,4,5]. The electro-Fenton (E-Fenton) process has been identified as a particularly attractive technology, as it is clean and can be used to generate reasonably high concentrations of hydroxy radicals, OH • , that can be employed in the oxidation, degradation and mineralisation of various organic compounds and is considered to be one of the more promising and emerging AOPs [1,6,7].…”

Section: Introductionmentioning

confidence: 99%

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Graphene-Modified Composites and Electrodes and Their Potential Applications in the Electro-Fenton Process

Tian

Breslin

2020

Materials

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In recent years, graphene-based materials have been identified as an emerging and promising new material in electro-Fenton, with the potential to form highly efficient metal-free catalysts that can be employed in the removal of contaminants from water, conserving precious water resources. In this review, the recent applications of graphene-based materials in electro-Fenton are described and discussed. Initially, homogenous and heterogenous electro-Fenton methods are briefly introduced, highlighting the importance of the generation of H2O2 from the two-electron reduction of dissolved oxygen and its catalysed decomposition to produce reactive and oxidising hydroxy radicals. Next, the promising applications of graphene-based electrodes in promoting this two-electron oxygen reduction reaction are considered and this is followed by an account of the various graphene-based materials that have been used successfully to give highly efficient graphene-based cathodes in electro-Fenton. In particular, graphene-based composites that have been combined with other carbonaceous materials, doped with nitrogen, formed as highly porous aerogels, three-dimensional materials and porous gas diffusion electrodes, used as supports for iron oxides and functionalised with ferrocene and employed in the more effective heterogeneous electro-Fenton, are all reviewed. It is perfectly clear that graphene-based materials have the potential to degrade and mineralise dyes, pharmaceutical compounds, antibiotics, phenolic compounds and show tremendous potential in electro-Fenton and other advanced oxidation processes.

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Section: Three-dimensional Graphene-modified Electrodesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Graphene-Modified Composites and Electrodes and Their Potential Applications in the Electro-Fenton Process

Tian

Breslin

2020

Materials

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“…There is room for modification in the Fenton process, which includes, but is not limited to the utilization of ultrasound (Sono-Fenton process -SF) [8,[11][12][13][14], anodic oxidation (Electro-Fenton Process -EF) [15][16][17][18], using UV light and adding ferric or ferrous oxalate ions (Photo-Fenton process -PF) [19][20][21][22][23], utilizing both ultrasound and ultraviolet light (Sono-Photo-Fenton process -SPF) [24][25][26], utilizing both ultrasound and anodic oxidation (Sono-Electro-Fenton process -SEF) [27], and utilizing a combination of electrochemical and photochemical properties of UV radiation (Photo-Electro-Fenton process -PEF) [2]. Other notable modifications have been developed, such as Solar-Photo-Electro-Fenton process (SPEF) [28], Peroxi Coagulation (PC), Photo-Peroxi Coagulation (PPC), Photo-Electro Catalysis (PEC), Ferred Fenton process, and Electrochemical Peroxidation (ECP) [29].…”

Section: Fentonmentioning

confidence: 99%

Fenton Reagent for Organic Compound Removal in Wastewater

et al. 2020

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The improper treatment of wastewater has cost humanity a large amount of access to clean water. Treating wastewater, by definition, means to remove pollutants, either physically or chemically. A chemical method of treating wastewater, the Fenton process, was deemed useful for the job. It includes a solution-based reaction that produces radicals to oxidize and break pollutants down. Variations of the Fenton process, each with their unique method, have been developed to increase the process’s efficacy and efficiency further. Admittedly, however, the information on this subject is relatively few, when compared to other more recent methods of treatment. This paper aims to present and discuss a wide variety of information on the Fenton process and its derivatives, including Electro-Fenton, Sono-Fenton, and Photo-Fenton among others.

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“…The presence of iron components in graphene-based catalysts on the other hand could promote the electro-Fenton (EF) process, which is important for hydroxyl radical production [43][44][45][46]. This can cause a significant increase in the synergy of the process.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Doped Graphene Iron-Based Particle Electrode Outperforms Activated Carbon in Three-Dimensional Electrochemical Water Treatment Systems

Ghanbarlou

Pedersen

Simonsen

et al. 2020

Water

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The synergy between electrochemical oxidation and adsorption on particle electrodes was investigated in three-dimensional (3D) systems for p-nitrosodimethylaniline (RNO) decolorization and pesticide removal. A comparison was made between granular activated carbon (GAC) and a novel synthesized nitrogen-doped graphene-based particle electrode (NCPE). Experiments on RNO decolorization show that the synergy parameter of the 3D-NCPE system was improved 3000 times compared to the studied 3D-GAC system. This was due to the specific nanostructure and composition of the NCPE material. Nitrogen-doped graphene triggered an oxygen reduction reaction, producing hydrogen peroxide that simultaneously catalyzed on iron sites of the NCPEs to hydroxyl radicals following the electro-Fenton (EF) process. Data showed that in the experimental setup used for the study, the applied cell voltage required for the optimal value of the synergy parameter could be lowered to 5V in the 3D-NCPEs process, which is significantly better than the 15–20 V needed for synergy to be found in the 3D-GAC process. Compared to previous studies with 3D-GAC, the removal of pesticides 2,6 dichlorobenzamide (BAM), 2-methyl-4-chlorophenoxyaceticacid (MCPA), and methylchlorophenoxypropionic acid (MCPP) was also enhanced in the 3D-NCPE system.

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Three-dimensional heterogeneous Electro-Fenton system with a novel catalytic particle electrode for Bisphenol A removal

Cited by 129 publications

References 44 publications

Graphene-Modified Composites and Electrodes and Their Potential Applications in the Electro-Fenton Process

Graphene-Modified Composites and Electrodes and Their Potential Applications in the Electro-Fenton Process

Fenton Reagent for Organic Compound Removal in Wastewater

Nitrogen-Doped Graphene Iron-Based Particle Electrode Outperforms Activated Carbon in Three-Dimensional Electrochemical Water Treatment Systems

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