The electrocatalytic reduction of nitrate in water on Pd/Sn-modified activated carbon fiber electrode
文献类型：期刊论文
| 作者 | Wang, Y; Qu, JH; Wu, RC; Lei, PJ |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2006 |
| 卷号 | 40期号:6页码:1224-1232 |
| 关键词 | nitrate reduction electrocatalysis activated carbon fiber water treatment Pd/Sn electrode |
| 英文摘要 | The Pd/Sn-modified activated carbon fiber (ACF) electrodes were successfully prepared by the impregnation of Pd2+ and Sn2+ ions onto ACF, and their electrocatalytic reduction capacity for nitrate ions in water was evaluated in a batch experiment. The electrode was characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectrum (XPS) and temperature programmed reduction (TPR). The capacity for nitrate reduction depending on Sn content on the electrode and the pH of electrolyte was discussed at length. The results showed that at an applied current density of 1.11 mA cm(-2), nitrate ions in water (solution volume: 400mL) were reduced from 110 to 3.4mgL(-1) after 240min with consecutive change of intermediate nitrite. Ammonium ions and nitrogen were formed as the main final products. The amount of other possible gaseous products (including NO and N2O) was trace. With the increase of Sn content on the Pd/Sn-modified ACF electrode, the activity for nitrate reduction went up to reach a maximum (at Pd/Sn = 4) and then decreased, while the selectivity to N-2 was depressed. Higher pH value of electrolyte exhibited more suppression effect on the reduction of nitrite than that of nitrate. However, no significant influence on the final ammonia formation was observed. Additionally, Cu ion in water was found to cover the active sites of the electrode to make the electrode deactivated. (c) 2006 Published by Elsevier Ltd. |
| WOS记录号 | WOS:000236480200015 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23032]  |
| 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 | Wang, Y,Qu, JH,Wu, RC,et al. The electrocatalytic reduction of nitrate in water on Pd/Sn-modified activated carbon fiber electrode[J]. WATER RESEARCH,2006,40(6):1224-1232. |
| APA | Wang, Y,Qu, JH,Wu, RC,&Lei, PJ.(2006).The electrocatalytic reduction of nitrate in water on Pd/Sn-modified activated carbon fiber electrode.WATER RESEARCH,40(6),1224-1232. |
| MLA | Wang, Y,et al."The electrocatalytic reduction of nitrate in water on Pd/Sn-modified activated carbon fiber electrode".WATER RESEARCH 40.6(2006):1224-1232. |
入库方式： OAI收割
来源：生态环境研究中心
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