| 胺基膦酸型离子交换(螯合)纤维酸碱性研究 |
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| 引用本文： | 刘瑞霞,汤鸿霄,张宝文.胺基膦酸型离子交换(螯合)纤维酸碱性研究[J].环境科学学报,1999,19(5):556-561. |
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| 作者姓名： | 刘瑞霞 汤鸿霄 张宝文 |
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| 作者单位： | 1. 中科院生态环境研究中心环境水化学国家重点实验室,北京,100085
2. 北京钢铁研究总院,北京,100081 |
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| 基金项目： | 中国科学院资源与生态环境研究重点项目，国家重点环境水化学实验室开放基金 |
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| 摘 要： | 通过电位滴定实验求定了氨基膦酸型螯合纤维的表面质子电荷密度σｓ、零电点ｐＨ（ＰＺＣ）的表面总吸附位Ｎｓ。并尝试了运用表面络合恒定容量模式求解此螯合纤维的表面固有酸度常数ｐＫａ１和ｐＫａ２。
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| 关 键 词： | 氨基膦酸型螯合纤维 酸碱特性 |
| 收稿时间： | 1998/4/10 0:00:00 |
| 修稿时间： | 1998/9/30 0:00:00 |
Acid-base properties of poly(acrylaminophosphonic-carboxyl- hydrazide ) chelating fiber |
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| LIU Ruixi,TANG Hongxiao and ZHANG Baowen.Acid-base properties of poly(acrylaminophosphonic-carboxyl- hydrazide ) chelating fiber[J].Acta Scientiae Circumstantiae,1999,19(5):556-561. |
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| Authors: | LIU Ruixi TANG Hongxiao and ZHANG Baowen |
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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 Center Iron and Steel Research Institute, Beijing 100081 |
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| Abstract: | The surface charge, point of zero proton charge and total absorption site of poly(acrylaminophosphonic\|carboxyl\|hydrazide) chelating fiber were determined by potentiometric titration method. The constant capacitance model was applied for evaluation of the intrinsic dissociation constants of the chelating fiber. |
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| Keywords: | poly(acrylaminophosphonic\|carboxyl\|hydrazide) chelating fiber acid\|base properties |
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