Capacitive deionization by ordered mesoporous carbon: electrosorption isotherm, kinetics, and the effect of modification
文献类型：期刊论文
| 作者 | Duan, Feng1,2,3; Li, Yuping1,2; Cao, Hongbin1,2; Xie, Yongbing1,2; Zhang, Yi1,2 |
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2014-02-23 |
| 卷号 | 52期号:7-9页码:1388-1395 |
| ISSN号 | 1944-3994 |
| 关键词 | Ordered mesoporous carbon Capacitive deionization Electrosorption Modification Surface chemistry |
| 其他题名 | Desalin. Water Treat. |
| 中文摘要 | In this study, an ordered mesoporous carbon (OMC) was synthesized and investigated as electrodes for capacitive deionization (CDI). The influence of working parameters on salt removal was studied and the electrosorption isotherm and kinetics were investigated. It was found that the electrosorption process fitted both Langmuir isotherm and Freundlich isotherm, and followed pseudo-first-order kinetics. The maximum electrosorptive capacity was 10.1mg/g at the optimized applied voltage of 1.2V and flow rate of 40ml/min. In order to investigate the effect of surface groups on CDI efficiency, OMC was modified by H2O2 solution or thermal treatment under N-2 atmosphere, without significantly changing its textural properties. X-ray photoelectron spectroscopy measurements showed that the amount of surface oxygen-containing groups was decreased and increased by the thermal and chemical treatments, respectively. CDI experiments revealed that OMC modified by H2O2 solution performed better than original OMC, while thermal treatment worsened the performance of OMC, probably due to the difference in their surface groups. This indicated that the CDI performance of OMC was greatly affected by the surface chemistry. |
| 英文摘要 | In this study, an ordered mesoporous carbon (OMC) was synthesized and investigated as electrodes for capacitive deionization (CDI). The influence of working parameters on salt removal was studied and the electrosorption isotherm and kinetics were investigated. It was found that the electrosorption process fitted both Langmuir isotherm and Freundlich isotherm, and followed pseudo-first-order kinetics. The maximum electrosorptive capacity was 10.1mg/g at the optimized applied voltage of 1.2V and flow rate of 40ml/min. In order to investigate the effect of surface groups on CDI efficiency, OMC was modified by H2O2 solution or thermal treatment under N-2 atmosphere, without significantly changing its textural properties. X-ray photoelectron spectroscopy measurements showed that the amount of surface oxygen-containing groups was decreased and increased by the thermal and chemical treatments, respectively. CDI experiments revealed that OMC modified by H2O2 solution performed better than original OMC, while thermal treatment worsened the performance of OMC, probably due to the difference in their surface groups. This indicated that the CDI performance of OMC was greatly affected by the surface chemistry. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Water Resources |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | RO BRINE TREATMENT ; ACTIVATED CARBON ; COMPOSITE ELECTRODES ; BRACKISH-WATER ; DESALINATION ; REMOVAL ; PERFORMANCE ; AEROGEL ; IONS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000331695700018 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/10897]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.UCAS, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Feng,Li, Yuping,Cao, Hongbin,et al. Capacitive deionization by ordered mesoporous carbon: electrosorption isotherm, kinetics, and the effect of modification[J]. DESALINATION AND WATER TREATMENT,2014,52(7-9):1388-1395. |
| APA | Duan, Feng,Li, Yuping,Cao, Hongbin,Xie, Yongbing,&Zhang, Yi.(2014).Capacitive deionization by ordered mesoporous carbon: electrosorption isotherm, kinetics, and the effect of modification.DESALINATION AND WATER TREATMENT,52(7-9),1388-1395. |
| MLA | Duan, Feng,et al."Capacitive deionization by ordered mesoporous carbon: electrosorption isotherm, kinetics, and the effect of modification".DESALINATION AND WATER TREATMENT 52.7-9(2014):1388-1395. |
入库方式： OAI收割
来源：过程工程研究所
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