Effect of pH on DDT degradation in aqueous solution using bimetallic Ni/Fe nanoparticles
文献类型：期刊论文
| 作者 | Tian, Hua; Li, Jinjun; Mu, Zhen; Li, Landong; Hao, Zhengping |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2009-04-07 |
| 卷号 | 66期号:1页码:84-89 |
| 关键词 | DDT Degradation Ni/Fe bimetal Nanoparticle |
| 中文摘要 | In this study, bimetallic Ni/Fe nanoparticles were prepared and the ability of this material to degrade DDT in aqueous solution was investigated at room temperature. Besides comparing the degradation rates of DDT using monometallic zero-valent iron and bimetallic Ni/Fe, batch investigations with bimetallic Ni/Fe nanoparticles were conducted to explore the influence of pH value on the degradation rate of DDT in aqueous solution. Results indicate that weakly acidic (4 <= pH < 7) or alkaline reaction (7 < pH <= 10) conditions afford faster degradation rates, whereas higher or lower pH inhibits the DDT degradation. In addition, the DDT degradation exhibits an interesting pathway and mechanism at higher pH value (pH > 10) in reaction solution. In strong alkaline solution, the DDT degradation becomes slow but is not quenched. The electron transfer for DDT degradation is enhanced by creating numerous galvanic cells under the Ni catalysis, and promotes the dehydrochlorination reaction. The hydrodechlorination reaction in alkaline condition is also unbroken. This phenomenon is quite different from those reported in other studies previously. (C) 2008 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000265326500012 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21610]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | Tian, Hua,Li, Jinjun,Mu, Zhen,et al. Effect of pH on DDT degradation in aqueous solution using bimetallic Ni/Fe nanoparticles[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2009,66(1):84-89. |
| APA | Tian, Hua,Li, Jinjun,Mu, Zhen,Li, Landong,&Hao, Zhengping.(2009).Effect of pH on DDT degradation in aqueous solution using bimetallic Ni/Fe nanoparticles.SEPARATION AND PURIFICATION TECHNOLOGY,66(1),84-89. |
| MLA | Tian, Hua,et al."Effect of pH on DDT degradation in aqueous solution using bimetallic Ni/Fe nanoparticles".SEPARATION AND PURIFICATION TECHNOLOGY 66.1(2009):84-89. |
入库方式： OAI收割
来源：生态环境研究中心
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