Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and Mechanism
In this study, La and Ce doped PbO2 electrodes were prepared and the characteristic of the electrodes were discussed with the help of structure analysis. The catalytic effects of the doped electrodes were explored through the degradation of para-aminophenol wastewater. The results showed that the pa...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-06-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2019.00382/full |
| _version_ | 1798044949790326784 |
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| author | Mili Weng Xihe Yu |
| author_facet | Mili Weng Xihe Yu |
| author_sort | Mili Weng |
| collection | DOAJ |
| description | In this study, La and Ce doped PbO2 electrodes were prepared and the characteristic of the electrodes were discussed with the help of structure analysis. The catalytic effects of the doped electrodes were explored through the degradation of para-aminophenol wastewater. The results showed that the para-aminophenol removal was 96.96%, 89.34%, and 77.55% after 180 min treatment with Ce-PbO2, La-PbO2, and PbO2, respectively. The para-aminophenol enhanced degradation mechanism was discussed with rare earth element doping electrodes and a kinetic model was established based on radical reactions mechanism with genetic algorithm (GA) calculation. The reaction constants of these electrodes were calculated and the results showed that the reaction constant of Ce-PbO2 electrode was the highest, which indicated that Ce-PbO2 electrode could have a better treatment effect. The EE/O was used as the index of energy consumption efficiency and the results were calculated and compared. This paper could provide basic data and technique reference of the prediction the oxidation reaction process of different electrodes for the electrochemical oxidation application in wastewater treatment. |
| first_indexed | 2024-04-11T23:12:24Z |
| format | Article |
| id | doaj.art-c9b451a26cdd4b8fa56ffab596c8f93d |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-04-11T23:12:24Z |
| publishDate | 2019-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-c9b451a26cdd4b8fa56ffab596c8f93d2022-12-22T03:57:46ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462019-06-01710.3389/fchem.2019.00382421983Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and MechanismMili WengXihe YuIn this study, La and Ce doped PbO2 electrodes were prepared and the characteristic of the electrodes were discussed with the help of structure analysis. The catalytic effects of the doped electrodes were explored through the degradation of para-aminophenol wastewater. The results showed that the para-aminophenol removal was 96.96%, 89.34%, and 77.55% after 180 min treatment with Ce-PbO2, La-PbO2, and PbO2, respectively. The para-aminophenol enhanced degradation mechanism was discussed with rare earth element doping electrodes and a kinetic model was established based on radical reactions mechanism with genetic algorithm (GA) calculation. The reaction constants of these electrodes were calculated and the results showed that the reaction constant of Ce-PbO2 electrode was the highest, which indicated that Ce-PbO2 electrode could have a better treatment effect. The EE/O was used as the index of energy consumption efficiency and the results were calculated and compared. This paper could provide basic data and technique reference of the prediction the oxidation reaction process of different electrodes for the electrochemical oxidation application in wastewater treatment.https://www.frontiersin.org/article/10.3389/fchem.2019.00382/fullelectrochemical oxidationrare earthdoped lead dioxide electrodeskinetics modelingmechanism |
| spellingShingle | Mili Weng Xihe Yu Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and Mechanism Frontiers in Chemistry electrochemical oxidation rare earth doped lead dioxide electrodes kinetics modeling mechanism |
| title | Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and Mechanism |
| title_full | Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and Mechanism |
| title_fullStr | Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and Mechanism |
| title_full_unstemmed | Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and Mechanism |
| title_short | Electrochemical Oxidation of Para-Aminophenol With Rare Earth Doped Lead Dioxide Electrodes: Kinetics Modeling and Mechanism |
| title_sort | electrochemical oxidation of para aminophenol with rare earth doped lead dioxide electrodes kinetics modeling and mechanism |
| topic | electrochemical oxidation rare earth doped lead dioxide electrodes kinetics modeling mechanism |
| url | https://www.frontiersin.org/article/10.3389/fchem.2019.00382/full |
| work_keys_str_mv | AT miliweng electrochemicaloxidationofparaaminophenolwithrareearthdopedleaddioxideelectrodeskineticsmodelingandmechanism AT xiheyu electrochemicaloxidationofparaaminophenolwithrareearthdopedleaddioxideelectrodeskineticsmodelingandmechanism |