Electrochemical activation of persulfates at BDD anode: Radical or nonradical oxidation?

Song, Haoran; Yan, Linxia; Jiang, Jin; Ma, Jun; Zhang, ZhongXiang; Zhang, Jiaming; Liu, Pingxin; Yang, Tao

doi:10.1016/j.watres.2017.10.018

Cited by 247 publications

(52 citation statements)

References 39 publications

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“…Recently, it was demonstrated that BDD electrode is effective to activate persulfate and is able to degrade various organic pollutants like atrazine, nitrobenzene, ampicillin, and carbamazepine . Atrazine degradation was inhibited by carbonate and nitrate addition, while enhanced by chloride addition .…”

Section: Applications Of Bdd In Water and Wastewater Treatmentmentioning

confidence: 99%

“…Both radical and non‐radical oxidation was proposed for pollutant removal by electrochemically activated persulfate process . Detailed investigation carried out by Song et al . revealed that pollutant removal in electrochemically activated persulfate system will occur via (1) direct electron transfer reaction occurs at BDD anode in which organic pollutants are oxidized directly at the anode surface (2) radical and non‐radical oxidation as proposed by Bu et al., (3) hydroxyl radical generation at the BDD surface by water oxidation, and (4) electrolysis of sulfate ions.…”

Section: Applications Of Bdd In Water and Wastewater Treatmentmentioning

confidence: 99%

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Environmental Applications of Boron‐Doped Diamond Electrodes: 1. Applications in Water and Wastewater Treatment

Nidheesh

Divyapriya

Oturan³

et al. 2019

ChemElectroChem

143

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Over the past few decades, environmental applications of the boron‐doped diamond (BDD) electrode are reported to be vast and versatile. Applications of BDD electrodes in the field of electrochemical advanced oxidation processes (EAOPs) for the abatement of toxic persistent organic pollutants are significant, owing to the easy and effective way of treatment. This article focuses on highlighting and summarizing the applications of the BDD electrode for the treatment of different synthetic and real wastewaters, such as those involved in pharmaceuticals and personal care products, pesticides/herbicides, dyes, etc. We also review the processes and methodologies involving the synthesis of BDD electrodes and summarize the desirable characteristic features required for the application of EAOPs. Applications of BDD electrodes for the treatment of wastewater through different EAOPs, including anodic oxidation, electro‐Fenton, coupling processes such as electro‐Fenton pyrite, bioelectro‐Fenton, and their recent advancements are also discussed in detail. It envisages the greater potential for complete treatment of different toxic wastewater effluents. This Review shows that the application of BDD electrodes in the field of wastewater treatment is tremendous and proves to be a promising material for future perspectives.

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Section: Applications Of Bdd In Water and Wastewater Treatmentmentioning

confidence: 99%

Section: Applications Of Bdd In Water and Wastewater Treatmentmentioning

confidence: 99%

Environmental Applications of Boron‐Doped Diamond Electrodes: 1. Applications in Water and Wastewater Treatment

Nidheesh

Divyapriya

Oturan³

et al. 2019

ChemElectroChem

143

View full text Add to dashboard Cite

show abstract

“…Although, different studies prove that sulfate reactive species play an important role in degradation, however do not lead to the complete mineralization of the compound (Song et al, 2018;Yang et al, 2018;Aimer et al, 2019). Another possible explanation for the incomplete mineralization of ATL could be related to the hydrodynamics of the reactor or the low concentration and/or reactivity of the degradation products, such as the carboxylic acids (Hamza et al, 2009;Guinea et al, 2010).…”

Section: Figmentioning

confidence: 99%

Study of the atenolol degradation using a Nb/BDD electrode in a filter-press reactor

et al. 2019

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The present paper deals with the atenolol (ATL) degradation by advanced anodic oxidation using a boron-doped diamond anode supported on niobium (Nb/BDD). Cyclic voltammetry performed on this electrode revealed that it presents a high quality (diamond-sp 3 /sp 2 -carbon ratio), high potential for OER and that ATL can be oxidized directly and/or indirectly by the electrogenerated oxidants, such as hydroxyl radicals, persulfate ions and sulfate radicals.Electrolysis experiments demonstrated that ATL degradation and mineralization follow a mixed (first and zero) order kinetics depending on the applied current density.At high applied current densities, the amount of OH radicals is very high and the overall reaction is limited by the transport of ATL (pseudo first-order kinetics) whereas for low applied current densities, the rate of OH radicals generation at the anode is slower than the rate of arrival of ATL molecules (pseudo-zero order kinetics). Estimated values of

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“…H2S2O8 has two important merits: 1) 2.01 volt of oxidation-reduction potential, and 2) long lifetime [8,9]. H2S2O8 can be generated by sulfuric acid electrolysis, then constant concentration maintained using diamond electrodes [10,11].…”

Section: H2so4 → H2s2o8 ＋ H2mentioning

confidence: 99%

Environmentally Friendly Plating Pretreatment for ABS Plastic Using Electrolyzed Sulfuric Acid

Nakabayashi

Umeda

Nagai

et al. 2018

Trans. Mat. Res. Soc. Japan

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High adhesion strength between Acrylonitrile Butadiene Styrene (ABS) plastic and plated metal has been conventionally obtained by chromic acid etching in manufacturing industry. However, in recent years, hexavalent chromium becomes the target as an environmental regulatory substances. Thus, the establishment of a chromium-free pretreatment method is expected. Electrolyzed sulfuric acid (ESA) is a unique oxidizer alternative to the chromic acid. Therefore, we have been trying to apply ESA to treat the surface of ABS plastic. Depending on the sulfuric acid concentration in ESA solution, modification effects such as changing the surface morphology and introducing the functional groups were different. The ESA in which the concentration of sulfuric acid is 75 wt% and 80 wt% can change ABS resin surface in quality to be hydrophilic from hydrophobic. Also, adhesion strength between plating metal film and the plastic was obtained maximum 1.2 kN/m. Mechanism of high adhesion was anchor effect with cohesion failure. Therefore, this environmentally friendly surface modification method is expected in industrial use.

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Electrochemical activation of persulfates at BDD anode: Radical or nonradical oxidation?

Cited by 247 publications

References 39 publications

Environmental Applications of Boron‐Doped Diamond Electrodes: 1. Applications in Water and Wastewater Treatment

Environmental Applications of Boron‐Doped Diamond Electrodes: 1. Applications in Water and Wastewater Treatment

Study of the atenolol degradation using a Nb/BDD electrode in a filter-press reactor

Environmentally Friendly Plating Pretreatment for ABS Plastic Using Electrolyzed Sulfuric Acid

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