Reaction of Cu(CN)(3)(2-) with H2O2 in water under alkaline conditions: Cyanide oxidation, Cu+/Cu2+ catalysis and H2O2 decomposition
文献类型：期刊论文
| 作者 | Chen, Fayuan ; Zhao, Xu ; Liu, Huijuan ; Qu, Jiuhui |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2014 |
| 卷号 | 158期号:1页码:85-90 |
| 关键词 | Metal-cyanide complex Hydrogen peroxide Decomplexation Fenton-like reaction |
| ISSN号 | 0926-3373 |
| 中文摘要 | Cuprous cyanide is widely present in electroplating wastewater or metallurgical effluents. In the present study, the destruction of Cu(CN)(3)(2-) with H2O2 in water under alkaline conditions was investigated. H2O2 oxidized the cyanide from Cu(CN)(3)(2-) to cyanate with the formation of Cu(CN)(2)- firstly. Following, the continuous oxidation of cyanide from Cu(CN)(2)- and the attendant dissociation of Cu(CN)(2)- led to progressive liberation of Cu+. Transformation of Cu+ to Cu2+ was confirmed afterward by X-ray photoelectron spectroscopy analysis. Meantime, the center dot OH signal was detected by electron spin resonance assay. It was concluded that Fenton-like reaction occurred between the liberated Cu+ and H2O2. UV-vis spectra studies revealed the formation of superoxo-cupric complex between Cu2+ and H2O2 in alkaline conditions, which decomposed into Cu2+ species and O-2 finally. Thus, how to improve the utilization of H2O2 and enhance the destruction of Cu(CN)(3)(2-) should be considered in the treatment of Cu(CN)(3)(2-) wastewater. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000339133500010 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9593]  |
| 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 | Chen, Fayuan,Zhao, Xu,Liu, Huijuan,et al. Reaction of Cu(CN)(3)(2-) with H2O2 in water under alkaline conditions: Cyanide oxidation, Cu+/Cu2+ catalysis and H2O2 decomposition[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2014,158(1):85-90. |
| APA | Chen, Fayuan,Zhao, Xu,Liu, Huijuan,&Qu, Jiuhui.(2014).Reaction of Cu(CN)(3)(2-) with H2O2 in water under alkaline conditions: Cyanide oxidation, Cu+/Cu2+ catalysis and H2O2 decomposition.APPLIED CATALYSIS B-ENVIRONMENTAL,158(1),85-90. |
| MLA | Chen, Fayuan,et al."Reaction of Cu(CN)(3)(2-) with H2O2 in water under alkaline conditions: Cyanide oxidation, Cu+/Cu2+ catalysis and H2O2 decomposition".APPLIED CATALYSIS B-ENVIRONMENTAL 158.1(2014):85-90. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。