Electrochemical synthesis of ferrate(VI) using sponge iron anode and oxidative transformations of antibiotic and pesticide

Sun, Xuhui; Zu, Kexin; Liang, Huihui; Sun, Lin; Zhang, Lingyun; Wang, Chuanyi; Sharma, Virender K.

doi:10.1016/j.jhazmat.2017.08.081

Cited by 47 publications

(15 citation statements)

References 59 publications

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“…Similar to the chemically-driven methods of ferrate generation, this method is not suitable in a drinking water context as it requires highly alkaline aqueous environments which would require neutralization subsequently [21][22][23][24][25][26][27][28][29][30][31][32][33].…”

Section: Bdd + H2o → Bdd( • Oh ) + H + + E -mentioning

confidence: 99%

Exploiting water contaminants: In-situ electrochemical generation of ferrates using ambient raw water iron (Fe2+)

McBeath

Wilkinson

Graham

2020

Journal of Environmental Chemical Engineering

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Section: Bdd + H2o → Bdd( • Oh ) + H + + E -mentioning

confidence: 99%

Exploiting water contaminants: In-situ electrochemical generation of ferrates using ambient raw water iron (Fe2+)

McBeath

Wilkinson

Graham

2020

Journal of Environmental Chemical Engineering

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“…Recently, a novel remediation strategy based on the use of ferrate(VI) (FeO 4 2or Fe(VI)) has been developed [9][10][11][12][13]. High-valent iron species such as Fe(VI) can carry out radical and electron transfer reactions [14].…”

Section: Among Existing Treatments To Remove Pcbs Chemical Oxidationmentioning

confidence: 99%

“…In addition to its high oxidation efficiency, degradation products of ferrate(VI) are non-toxic e.g. Fe(III) (hydr)oxides, and may preserve the biodiversity of the treated soil [9,[11][12][13]. Therefore, ferrate(VI) can be considered as a pioneering green oxidant that could be used for in-situ chemical oxidation of contaminated soils.…”

Section: Among Existing Treatments To Remove Pcbs Chemical Oxidationmentioning

confidence: 99%

Ferrate(VI) based chemical oxidation for the remediation of aged PCB contaminated soil: Comparison with conventional oxidants and study of limiting factors

Monfort

Usman

Soutrel

et al. 2019

Chemical Engineering Journal

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Ferrate (Fe(VI)) has emerged as an efficient oxidant to treat organic pollutants in aqueous solution. However, its application has never been assessed to remediate the contaminated soils. Here, we report the first study to use Fe(VI) for chemical oxidation of PCBs in historically contaminated soils obtained from an industrial wasteland. The first part of this study explores the efficiency of ferrate(VI) to degrade PCBs under various experimental conditions (liquid/solid ratio, oxidant dose, temperature and reaction time). Integrated application of Fe(VI) with conventional oxidants (hydrogen peroxide H 2 O 2 , persulfate S 2 O 8 2and peroxymonosulfate HSO 5-) was also tested. Conventional oxidants resulted in only 2-2 12% PCB degradation while Fe(VI) removed 30% of PCBs. Integrated use of Fe(VI) and conventional oxidants improved the degradation efficiency which was the highest (40% removal) by Fe(VI)/HSO 5-. This could be attributed to two-step degradation proceeding firstly by electron transfer with Fe(VI) followed by radical attack of conventional oxidants. To evaluate if PCB degradation is limited by soil factors, role of carbonate content, overall soil matrix, and PCB availability were assessed as a second part of this study. Negative role of soil matrix was highly prominent for conventional oxidants than Fe(VI). An increase in PCB availability improved the treatment efficiency (45% removal by Fe(VI) alone) highlighting the role of soil factors. All these results indicate the higher suitability and efficiency of Fe(VI) as compared to the conventional oxidants for soil remediation. Since use of Fe(VI) is innovative for both soil remediation and PCB oxidation, degradation mechanisms are also proposed.

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“…As an environment-friendly water treatment agent that combines the functions of disinfection, coagulation, and chemical oxidation, the synthesis and preparation of ferrate(VI) ([FeO 4 ] 2− ) has garnered more attention from researchers. [8][9][10] This study focuses on a new method of synthesizing ferrate(VI) in solutions. The wet oxidation method is one of the common methods for preparing ferrate(VI) in solution.…”

Section: R → O + Ne −mentioning

confidence: 99%

Anodic oxidation to produce persulfate for treatment of oilfield wastewater and synthesis of Fe(vi)

Yan

zhang

2022

Environ. Sci.: Water Res. Technol.

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Electrochemical synthesis of ferrate(VI) using sponge iron anode and oxidative transformations of antibiotic and pesticide

Cited by 47 publications

References 59 publications

Exploiting water contaminants: In-situ electrochemical generation of ferrates using ambient raw water iron (Fe2+)

Exploiting water contaminants: In-situ electrochemical generation of ferrates using ambient raw water iron (Fe2+)

Ferrate(VI) based chemical oxidation for the remediation of aged PCB contaminated soil: Comparison with conventional oxidants and study of limiting factors

Anodic oxidation to produce persulfate for treatment of oilfield wastewater and synthesis of Fe(vi)

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