| 电化学合成的聚合氯化铝的形态特征 |
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| 引用本文： | 刘会娟,曲久辉,胡承志.电化学合成的聚合氯化铝的形态特征[J].环境科学学报,2003,23(2):201-204. |
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| 作者姓名： | 刘会娟 曲久辉 胡承志 |
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| 作者单位： | 1. 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085
2. 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085;西北农林科技大学资源与环境学院,杨凌,712100 |
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| 基金项目： | 国家自然科学基金重点项目 (批准号 :5 0 10 80 16) |
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| 摘 要： | 采用电解法合成了聚合氯化铝溶液 ,并采用2 7AlNMR法、透射电镜等方法对其形态特征进行了研究 .2 7AlNMR法表明在电化学制备PAC中主要含有铝单体 ,铝的二聚体及Al13形态 .Al13含量与其溶液的碱化度 (B)有关 .在总铝浓度 (AlT)为 2 .0mol L ,B为 2 .2时Al13含量达到最高 ,占AlT 的 70 .2 % ,并在溶液中较稳定存在 .透射电镜实验结果表明 ,电解制备的PAC的粒度分布均匀 ,无团聚现象产生
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| 关 键 词： | 电化学 聚合氯化铝 Al13 |
| 文章编号： | 0253-2468(2003)02-0201-04 |
| 收稿时间： | 2002/7/11 0:00:00 |
| 修稿时间： | 2002年7月11日 |
Characteristics of polyaluminum chloride prepared by electrochemical process |
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| LIU Huijuan,QU Jiuhui and HU Chengzhi.Characteristics of polyaluminum chloride prepared by electrochemical process[J].Acta Scientiae Circumstantiae,2003,23(2):201-204. |
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| Authors: | LIU Huijuan QU Jiuhui and HU Chengzhi |
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| Institution: | State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 and 1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085; 2. Collage of Resource and Environment, Northwest Sci-Tech University of Agriculture and Forestry, Yan |
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| Abstract: | Polyaluminum chloride (PAC) is prepared by electrolysis process. The products are characterized using 27Al NMR spectroscopy and transmission electron micrograph (TEM). 27Al NMR spectroscopy results show that high content of Al_ 13 polymer is formed in PAC prepared by electrolysis process. For the solution of total Al concentration (Al_T]) 2.0?mol L -1 with a basicity (B) = 2.2, the amount of Al_ 13 polymer account for 70.2 % of Al_T. Al_ 13 is relatively stable in PAC solution. The result of TEM shows that the particle speciation existing in PAC prepared by electrolysis process is equable distribution. |
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| Keywords: | electrochemical process PAC Al_ 13 |
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