The kinetics and thermodynamics of surfactants in solvent sublation
文献类型：期刊论文
| 作者 | Lu, YJ; Wang, YS; Xiong, Y; Zhu, XH |
| 刊名 | FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2001-08-01 |
| 卷号 | 370期号:8页码:1071-1076 |
| 关键词 | trace-element separation transport extraction preconcentration |
| ISSN号 | 0937-0633 |
| 其他题名 | Fresenius J. Anal. Chem. |
| 中文摘要 | Solvent sublation has been performed on very dilute solutions of one cationic surfactant, hexadecylpyridinium chloride (HPC), and one anionic surfactant. dodecylbenzenesulfonic acid (LBS). Some thermodynamic values were obtained, e.g. molecular areas, A, which are 50.0 and 47.7 Angstrom(2)/molecule, respectively, for HPC and LBS, and free adsorption energies, DeltaGdegrees(ads), which are -33.17 and -43.58 kJ mol(-1), respectively, for HPC and LBS. The kinetics were determined for a range of temperatures and gas flow-rates. Although the processes of solvent sublation of the two surfactants obey first-order kinetics, the respective adsorption mechanisms of HPC and LBS in the solvent sublation process were different. The pH and the presence of KCl and ethanol had no effect on the solvent sublation of LBS. The apparent active energy was calculated as 8.11 kJ mol(-1). |
| 英文摘要 | Solvent sublation has been performed on very dilute solutions of one cationic surfactant, hexadecylpyridinium chloride (HPC), and one anionic surfactant. dodecylbenzenesulfonic acid (LBS). Some thermodynamic values were obtained, e.g. molecular areas, A, which are 50.0 and 47.7 Angstrom(2)/molecule, respectively, for HPC and LBS, and free adsorption energies, DeltaGdegrees(ads), which are -33.17 and -43.58 kJ mol(-1), respectively, for HPC and LBS. The kinetics were determined for a range of temperatures and gas flow-rates. Although the processes of solvent sublation of the two surfactants obey first-order kinetics, the respective adsorption mechanisms of HPC and LBS in the solvent sublation process were different. The pH and the presence of KCl and ethanol had no effect on the solvent sublation of LBS. The apparent active energy was calculated as 8.11 kJ mol(-1). |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Analytical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | TRACE-ELEMENT SEPARATION ; TRANSPORT EXTRACTION ; PRECONCENTRATION |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000175276300016 |
| 公开日期 | 2013-11-14 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5757]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Shengzhen Univ, Normal Sch, Dept Biol & Chem, Shengzhen 518060, Peoples R China 2.Zhongshan Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China 3.Chinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, YJ,Wang, YS,Xiong, Y,et al. The kinetics and thermodynamics of surfactants in solvent sublation[J]. FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY,2001,370(8):1071-1076. |
| APA | Lu, YJ,Wang, YS,Xiong, Y,&Zhu, XH.(2001).The kinetics and thermodynamics of surfactants in solvent sublation.FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY,370(8),1071-1076. |
| MLA | Lu, YJ,et al."The kinetics and thermodynamics of surfactants in solvent sublation".FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY 370.8(2001):1071-1076. |
入库方式： OAI收割
来源：过程工程研究所
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