Electro-oxidation of diclofenac at boron doped diamond: Kinetics and mechanism
文献类型：期刊论文
| 作者 | Zhao, Xu; Hou, Yining; Liu, Huijuan; Qiang, Zhimin; Qu, Jiuhui |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 54期号:17页码:4172-4179 |
| 关键词 | Anti-inflammatory drugs Diclofenac Diamond electrode Anode oxidation Degradation mechanism |
| 中文摘要 | Diclofenac is a common anti-inflammatory drug. Its electrochemical degradation at boron doped diamond electrode was investigated in aqueous solution. The degradation kinetics and the intermediate products were studied. Results showed that electro-oxidation was effective in inducing the degradation of diclofenac with 30 mg/L initial concentration, ensuring a mineralization degree of 72% after a 4h treatment with the applied bias potential of 4.0 V. The effects of applied bias potential and addition of NaCl on diclofenac degradation were investigated. Different degradation mechanisms of diclofenac were involved at various applied bias potentials. With the addition of NaCl, some chlorination intermediates including dichlorodiclofenac were identified, which lead to the total organic carbon increase compared with the electrolysis process without NaCl addition at the reaction initial period. The main intermediates including 2,6-dichlorobenzenamine, 2,5-dihydroxybenzyl alcohol, and benzoic acid are identified at the time of 2 h. 1-(2,6-Dichlorocyclohexa-2,4-dienyl)indolin-2-one were also identified. These intermediates disappeared gradually with the extension of reaction time. Small molecular acids were identified finally. Based on these results, a degradation pathway of diclofenac was proposed. (C) 2009 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000266416800005 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21673]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhao, Xu,Hou, Yining,Liu, Huijuan,et al. Electro-oxidation of diclofenac at boron doped diamond: Kinetics and mechanism[J]. ELECTROCHIMICA ACTA,2009,54(17):4172-4179. |
| APA | Zhao, Xu,Hou, Yining,Liu, Huijuan,Qiang, Zhimin,&Qu, Jiuhui.(2009).Electro-oxidation of diclofenac at boron doped diamond: Kinetics and mechanism.ELECTROCHIMICA ACTA,54(17),4172-4179. |
| MLA | Zhao, Xu,et al."Electro-oxidation of diclofenac at boron doped diamond: Kinetics and mechanism".ELECTROCHIMICA ACTA 54.17(2009):4172-4179. |
入库方式： OAI收割
来源：生态环境研究中心
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