Enhancing destruction of copper (I) cyanide and subsequent recovery of Cu(I) by a novel electrochemical system combining activated carbon fiber and stainless steel cathodes
文献类型：期刊论文
| 作者 | Qu, Jiuhui; Chen, Fayuan; Hu, Chengzhi; Sun, Meng; Liu, Huijuan; Tao, Zhiying |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2017-12-15 |
| 卷号 | 330期号:0页码:1187-1194 |
| 关键词 | Electrochemical System Cuprous Cyanide Complex Metal Recovery Combined Cathodes |
| 英文摘要 | Metal recovery is an attractive strategy for treatment of heavy metal wastewater. Heavy metal cyanide complexes are common pollutants in electroplating or mine industry wastewater, which usually hinder metal recovery due to the high stability of these complexes. A novel electrochemical system with activated carbon fiber and stainless steel combined cathodes was constructed for copper (I) cyanide (Cu(CN)(3)(2-)) destruction and Cu(I) recovery. The destruction of cyanide was significantly improved by combining the stainless steel and activated carbon fiber cathodes due to the enhancement of electro-generated H2O2, which was promoted due to catalysis by copper deposited at the cathodes. Both the destruction of Cu(CN)(3)(2-) and recovery of Cu(I) at 75 min attained 95.0 +/- 3.0%, which were higher than values obtained using stainless steel or activated carbon fiber as individual cathodes. The rate of Cu(CN)(3)(2) destruction and Cu(I) recovery increased with increasing pH. The optimal current density was 50 A/m(2), and higher current density caused more side reactions. Cu(CN)(3)(2-) was successively transformed into Cu(CN)(2-), CNO- and Cu(I), and the liberated Cu(I) was recovered as Cu(0) on the stainless steel and activated carbon fiber electrodes. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39504]  |
| 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 | Qu, Jiuhui,Chen, Fayuan,Hu, Chengzhi,et al. Enhancing destruction of copper (I) cyanide and subsequent recovery of Cu(I) by a novel electrochemical system combining activated carbon fiber and stainless steel cathodes[J]. CHEMICAL ENGINEERING JOURNAL,2017,330(0):1187-1194. |
| APA | Qu, Jiuhui,Chen, Fayuan,Hu, Chengzhi,Sun, Meng,Liu, Huijuan,&Tao, Zhiying.(2017).Enhancing destruction of copper (I) cyanide and subsequent recovery of Cu(I) by a novel electrochemical system combining activated carbon fiber and stainless steel cathodes.CHEMICAL ENGINEERING JOURNAL,330(0),1187-1194. |
| MLA | Qu, Jiuhui,et al."Enhancing destruction of copper (I) cyanide and subsequent recovery of Cu(I) by a novel electrochemical system combining activated carbon fiber and stainless steel cathodes".CHEMICAL ENGINEERING JOURNAL 330.0(2017):1187-1194. |
入库方式： OAI收割
来源：生态环境研究中心
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