Sorption of aromatic hydrocarbons onto montmorillonite as affected by norfloxacin
文献类型：期刊论文
| 作者 | Pei, Zhiguo ; Kong, Jingjing ; Shan, Xiao-quan ; Wen, Bei |
| 刊名 | Engineering; Environmental Sciences & Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 203期号:1页码:137-144 |
| 关键词 | Sorption Norfloxacin Aromatic hydrocarbons Montmorillonite H-1 NMR |
| ISSN号 | 0304-3894 |
| 中文摘要 | Effect of norfloxacin (Nor) on the sorption of 1,3-dinitrobenzene (1,3-DNB), and PAHs (naphthalene (NAPH), phenanthrene (PHEN) and pyrene (PYR)) to K+-montmorillonite was studied. Nor suppressed 1,3-DNB sorption due to their competition for the same sorption sites. 1,3-DNB was sorbed on K+-montmorillonite surface via cation-polar interaction and n-pi electron donor-acceptor interaction. Nor also was sorbed on these sites through cation exchange, cation bridging and/or surface complexation. Nor increased three PAHs sorption on montmorillonite and the enhanced magnitude was positively correlated with the pi-donor strength of three PAHs. The enhanced sorption of PAHs by Nor was primarily attributed to pi-pi interaction between pi-electron-depleted quinoline ring of Nor and pi-electron-rich PAHs. Compared with cation (Nor(+)) and anion (Nor(-)), zwitterion (Nor(+/-)) of Nor increased PHEN and PYR sorption more pronounced due to additional cation-pi interaction between the sorbed Nor(+/-) and PAHs. H-1 NMR spectrum provided direct evidence for pi-pi and cation-pi complexation between PAHs and Nor(+) in solution by ring-current-induced upheld chemical shifts of amino group and methylene group of Nor(+). (C) 2011 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000300204800017 |
| 公开日期 | 2014-11-27 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8078]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pei, Zhiguo,Kong, Jingjing,Shan, Xiao-quan,et al. Sorption of aromatic hydrocarbons onto montmorillonite as affected by norfloxacin[J]. Engineering; Environmental Sciences & Ecology,2012,203(1):137-144. |
| APA | Pei, Zhiguo,Kong, Jingjing,Shan, Xiao-quan,&Wen, Bei.(2012).Sorption of aromatic hydrocarbons onto montmorillonite as affected by norfloxacin.Engineering; Environmental Sciences & Ecology,203(1),137-144. |
| MLA | Pei, Zhiguo,et al."Sorption of aromatic hydrocarbons onto montmorillonite as affected by norfloxacin".Engineering; Environmental Sciences & Ecology 203.1(2012):137-144. |
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。