Electrooxidation of nickel-ammonia complexes and simultaneous electrodeposition recovery of nickel from practical nickel-electroplating rinse wastewater
文献类型：期刊论文
| 作者 | Cao, Di; Zhao, Xu; Guan, Wei; Tian, Shichao; Chen, Yutong |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2017-08-20 |
| 卷号 | 246期号:0页码:1230-1236 |
| 关键词 | Electrodeposition Electrooxidation Nickel-ammonia Complexes Nickel Recovery Ammonia Removal |
| 英文摘要 | In this experiment, a combined electrooxidation-electrodeposition (EO-ED) system using RuO2/Ti anode and stainless steel cathode was employed to treat nickel-ammonia complexes wastewater, which simultaneously achieved the decomplexation of nickel-ammonia complexes and recovery of nickel metal. Effects of current density, pH value and reaction temperature on electrochemical performance were analyzed. When the current density was 32 mA/cm(2), pH was 9.0 and the temperature was 60 degrees C, the nickel recovery percentage was 99% and the ammonia removal efficiency was 70%. Combined with the SEM-EDX, XRD and XPS analysis for the cathode surface, it was confirmed that the generation of deposition on the cathode surface was zero-valent nickel. Firstly, Nickel-ammonia complexes were destroyed by electrooxidation process, generating Ni2+ ions and free NH3. Then, Ni2+ ions were reduced onto the cathode and free NH3 were further oxidized. Stability of the system for nickel-ammonia complexes treatment was examined by repeated experiments for fifteen successive cycles. The electrochemical system exhibited a satisfactory stability for nickel recovery and ammonia removal, achieving nickel recovery percentage of 85-95% and ammonia removal efficiency of 65-70%, respectively. (C) 2017 Published by Elsevier Ltd. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39686]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Cao, Di,Zhao, Xu,Guan, Wei,et al. Electrooxidation of nickel-ammonia complexes and simultaneous electrodeposition recovery of nickel from practical nickel-electroplating rinse wastewater[J]. ELECTROCHIMICA ACTA,2017,246(0):1230-1236. |
| APA | Cao, Di,Zhao, Xu,Guan, Wei,Tian, Shichao,&Chen, Yutong.(2017).Electrooxidation of nickel-ammonia complexes and simultaneous electrodeposition recovery of nickel from practical nickel-electroplating rinse wastewater.ELECTROCHIMICA ACTA,246(0),1230-1236. |
| MLA | Cao, Di,et al."Electrooxidation of nickel-ammonia complexes and simultaneous electrodeposition recovery of nickel from practical nickel-electroplating rinse wastewater".ELECTROCHIMICA ACTA 246.0(2017):1230-1236. |
入库方式： OAI收割
来源：生态环境研究中心
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