Electrocatalytic Reduction of Nitrate via Co3O4/Ti Cathode Prepared by Electrodeposition Paired With IrO2-RuO2 Anode
文献类型：期刊论文
| 作者 | Wang, Chuan1; Cao, Zhifen1; Huang, Hongtao1; Liu, Hong2 ; Wang, Sha2
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| 刊名 | FRONTIERS IN CHEMISTRY
 |
| 出版日期 | 2022-06-03 |
| 卷号 | 10页码:9 |
| 关键词 | nitrate removal electrocatalytic Co3O4 Ti reduction IrO2-RuO2 |
| ISSN号 | 2296-2646 |
| DOI | 10.3389/fchem.2022.900962 |
| 通讯作者 | Wang, Sha(wangsha@cigit.ac.cn) |
| 英文摘要 | Nitrate pollution is already a global problem, and the electrocatalytic reduction of nitrate is a promising technology for the remediation of wastewater and polluted water bodies. In this work, Co3O4/Ti electrodes were prepared by electrodeposition for the electrocatalytic reduction of nitrate. The morphology, chemical, and crystal structures of Co3O4/Ti and its catalytic activity were investigated. Then, the electrocatalytic nitrate reduction performance of Co3O4/Ti as the cathode was evaluated by monitoring the removal efficiencies of nitrate (NO3--N) and total nitrogen (TN), generation of reduction products, current efficiency (CE), and energy consumption (EC) at different operating conditions. Under the catalysis of Co3O4/Ti, NO3- was reduced to N-2 and NH4+, while no NO2- was produced. After the introduction of chloride ions and IrO2-RuO2/Ti as the anode, NH4+ was selectively oxidized to N-2. The removal efficiencies of NO3--N (at 100 mg/L) and TN after 2 h were 91.12% and 60.25%, respectively (pH 7.0; Cl- concentration, 2000 mg/L; current density, 15 mA/cm(2)). After 4 h of operation, NO3--N and TN were completely removed. However, considering the EC and CE, a 2-h reaction was the most appropriate. The EC and CE were 0.10 kWh/g NO3-N and 40.3%, respectively, and electrocatalytic performance was maintained after 10 consecutive reduction cycles (2 h each). The cathode Co3O4/Ti, which is prepared by electrodeposition, can effectively remove NO3--N, with low EC and high CE. |
| 资助项目 | National Natural Science Foundation of China[51978181] ; National Natural Science Foundation of China[51808527] ; National Natural Science Foundation of China[51727812] ; National Natural Science Foundation of China[52131003] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000812398500001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/16172]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Wang, Sha |
| 作者单位 | 1.Guangzhou Univ, Inst Environm Res Greater Bay, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chuan,Cao, Zhifen,Huang, Hongtao,et al. Electrocatalytic Reduction of Nitrate via Co3O4/Ti Cathode Prepared by Electrodeposition Paired With IrO2-RuO2 Anode[J]. FRONTIERS IN CHEMISTRY,2022,10:9. |
| APA | Wang, Chuan,Cao, Zhifen,Huang, Hongtao,Liu, Hong,&Wang, Sha.(2022).Electrocatalytic Reduction of Nitrate via Co3O4/Ti Cathode Prepared by Electrodeposition Paired With IrO2-RuO2 Anode.FRONTIERS IN CHEMISTRY,10,9. |
| MLA | Wang, Chuan,et al."Electrocatalytic Reduction of Nitrate via Co3O4/Ti Cathode Prepared by Electrodeposition Paired With IrO2-RuO2 Anode".FRONTIERS IN CHEMISTRY 10(2022):9. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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