Characteristics of nanosized polyaluminum chloride coagulant prepared by electrolysis process
文献类型：期刊论文
| 作者 | Liu, HJ; Qu, JH; Hu, CZ; Zhang, SJ |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2003 |
| 卷号 | 216期号:1页码:139-147 |
| 关键词 | preparation polyaluminum chloride electrolysis process Al-13 polymer stability |
| 英文摘要 | Polyaluminum chloride (PAC) has become a focus of many studies involving coagulation because of its advantages over traditional coagulants. In this study, a novel method involving an electrolysis process for preparing of PAC was developed. The products were characterized using Al-27 NMR spectroscopy, dynamic light scattering (DLS) and transmission electron micrograph (TEM). Results indicated that the electrolysis process provided favorable conditions for the formation of significant quantities of active species (Al-13 polymer) at relatively high concentrations of total Al (Al-T) (0.2-2.0 mol l(-1)). For each concentration of Al-T, there was an optimum molar ratio of OH/Al (n) for formation of Al-13. The Al-13 species was stable for more than 6 months in solution when the n value was < 2.0. However, in solutions with n values above 2.2, the Al-13 species gradually converted to other polynuclear forms that were not detectable by Al-27 NMR spectroscopy. The results of DLS and TEM showed that the particles existing in PAC prepared by the electrolysis process were in the nanometer size range. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 研究领域[WOS] | Chemistry |
| WOS记录号 | WOS:000182771600015 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23745]  |
| 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 | Liu, HJ,Qu, JH,Hu, CZ,et al. Characteristics of nanosized polyaluminum chloride coagulant prepared by electrolysis process[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2003,216(1):139-147. |
| APA | Liu, HJ,Qu, JH,Hu, CZ,&Zhang, SJ.(2003).Characteristics of nanosized polyaluminum chloride coagulant prepared by electrolysis process.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,216(1),139-147. |
| MLA | Liu, HJ,et al."Characteristics of nanosized polyaluminum chloride coagulant prepared by electrolysis process".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 216.1(2003):139-147. |
入库方式： OAI收割
来源：生态环境研究中心
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