Electrocatalytic sulfathiazole degradation by a novel nickel-foam cathode coated with nitrogen-doped porous carbon

Deng, Fengxia; Qiu, Shan; Olvera‐Vargas, Hugo; Gao, Weiqi; Yang, Jixian; Ma, Fang

doi:10.1016/j.electacta.2018.11.180

Cited by 40 publications

(20 citation statements)

References 58 publications

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“…This signifies the presence of another H 2 O 2 formation mechanism that contributes to the two‐electron ORR and can be attributed to Ni nanoparticles. [ 36,42 ]…”

Section: Resultsmentioning

confidence: 99%

“…In comparison to other carbon‐coated Ni foams reported in the literature (Table , Supporting Information), e.g., biochar, [ 35 ] carbon black, [ 16 ] and N‐doped carbons, [ 36 ] the CNF/Ni foams represent higher CE values and a comparable H 2 O 2 production rate (2.2 mg h −1 cm −2 ) at a significantly lower average current density of 2.4 mA cm −2 . The highest value of 5.9 mg h −1 cm −2 was achieved by a Biochar/Ni foam at a current density of 10 mA cm −2 .…”

Section: Resultsmentioning

confidence: 99%

“…The decline in the CBZ removal rate can be attributed to the increasing concentration of oxidation by‐products, evolving from the fast initial depletion of CBZ and competing with CBZ for consuming • OH, which is in agreement with the literature. [ 36,46 ]…”

Section: Resultsmentioning

confidence: 99%

“…However, the application of metal foams and carbon‐functionalized metal foams in EF processes has been shown to be an efficient alternative to conventional carbon cathode materials. [ 34–37 ]…”

Section: Introductionmentioning

confidence: 99%

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An Electrode with Two‐Level Porosity for Electro‐Fenton: Carbon Nanofiber‐Functionalized Macroporous Nickel Foam

Limper

Mohseni

Keller

et al. 2022

Advanced Sustainable Systems

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“…This signifies the presence of another H 2 O 2 formation mechanism that contributes to the two‐electron ORR and can be attributed to Ni nanoparticles. [ 36,42 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Electrode with Two‐Level Porosity for Electro‐Fenton: Carbon Nanofiber‐Functionalized Macroporous Nickel Foam

Limper

Mohseni

Keller

et al. 2022

Advanced Sustainable Systems

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show abstract

“…In the indirect oxidation process, organic matter is decomposed in the solution through an electrochemical oxidation reaction to produce an oxidant, such as hypochlorite, chlorine, and hydrogen peroxide (H 2 O 2 ) [ 11 ]. Nickel foam (Ni-F) was a new type of electrode with excellent physical and mechanical properties, which was expected to be used in large-scale applications [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Separation and Characterization of Cellulose Fibers from Cannabis Bast Using Foamed Nickel by Cathodic Electro-Fenton Oxidation Strategy

Chen

et al. 2022

Polymers

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Degumming is the most important link in the textile industry. The main purpose of degumming is to effectively remove non-cellulose substances in plant bast fibers. In this research, we propose an electro-Fenton (EF) system with a nickel-foam (Ni-F) cathode in weak acid pH (EF/Ni-F) to degum cannabis fiber in EF while reducing the content of pollutants in degumming wastewater. FT-IR, XPS, XRD, SEM, and TG were employed to thoroughly understand the reaction characteristics to characterize chemical components, element qualities, the crystallinity, and the morphologies of degummed fibers. Additionally, physical and mechanical properties such as breaking strength, elongation at breaking, residual glue rate, whiteness, and diameter of degummed fibers were measured. Through testing, it was found that the fiber degummed by the EF method had higher breaking strength, lower residual tackiness, and higher whiteness than other methods. The antibacterial test was used to detect the effect of fiber on Staphylococcus aureus before and after degumming. EF could remove more colloidal components from cannabis than other methods, and the mechanical properties were also enhanced. The characteristics of the degummed fiber further confirmed the effectiveness of the new degumming method. Moreover, the antibacterial experiment found that the antibacterial property of the degummed fiber was enhanced. The colloidal components in the degumming wastewater were flocculated and precipitated. The upper liquid of the solution had low chromaticity, low COD value, and weak acid pH value, which can meet the discharge requirements. The above test proves that EF is an effective degumming method that is environmentally friendly, takes less time, and enhances antibacterial performance.

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Hydrogen peroxide electrosynthesis with nickel foam electrodes: influence mechanism of surface oxidation

Zhao,

Ding,

Zhu

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDNickel foam (NF) is widely used as battery electrode matrix and electrochemical process cathode. However, the surface of NF is prone to oxidation, which may affect its ability to reduce oxygen and produce H2O2, but the influence mechanism is still unclear. In this paper, surface oxidation of the NF was regulated by pickling and drying pretreatment, and the surface oxides were characterized by X‐ray photoelectron spectroscopy (XPS) and energy dispersive X‐ray spectrometry (EDS). The NF was used as the substrate, graphite powder as the catalyst, and PTFE as the binder to prepare graphite‐coated NF composite electrodes. The effect of NF surface oxidation on their ability to generate H2O2 was investigated.RESULTSThe results demonstrated that after pickling and drying, the NF surface generated a large amount of NiO, which increased the charge transfer resistance of the NF by 20.3%, and accelerated further reduction decomposition of H2O2. The rotating ring‐disk electrode (RRDE) tests further confirmed that NiO can reduce the two‐electron oxygen reaction selectivity, which was detrimental to H2O2 electrosynthesis. The graphite‐coated NF composite electrode with pristine NF as the substrate can produce 869.1 mg L−1 of H2O2 and maintain relatively good reusability.CONCLUSIONOverall, the surface oxidation of NF is not conducive to H2O2 electrosynthesis, and it is necessary to prevent oxidation during electrode preparation. This study provides a valuable reference for the preparation of NF electrodes and can promote the further study of in situ H2O2 electrosynthesis. © 2023 Society of Chemical Industry (SCI).

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Electrocatalytic sulfathiazole degradation by a novel nickel-foam cathode coated with nitrogen-doped porous carbon

Cited by 40 publications

References 58 publications

An Electrode with Two‐Level Porosity for Electro‐Fenton: Carbon Nanofiber‐Functionalized Macroporous Nickel Foam

An Electrode with Two‐Level Porosity for Electro‐Fenton: Carbon Nanofiber‐Functionalized Macroporous Nickel Foam

Separation and Characterization of Cellulose Fibers from Cannabis Bast Using Foamed Nickel by Cathodic Electro-Fenton Oxidation Strategy

Hydrogen peroxide electrosynthesis with nickel foam electrodes: influence mechanism of surface oxidation

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