| 壳聚糖及其共聚物吸附Cu~(2+)、Zn~(2+)动力学研究 |
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| 引用本文： | 周金波,袁毅桦,贾德民.壳聚糖及其共聚物吸附Cu~(2+)、Zn~(2+)动力学研究[J].环境科学与技术,2008,31(1):33-35,44. |
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| 作者姓名： | 周金波 袁毅桦 贾德民 |
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| 作者单位： | 1. 华南理工大学材料学院,广东广州,510640
2. 华南理工大学材料学院,广东广州,510640;佛山科学技术学院化学与化工系,广东佛山,528000 |
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| 摘 要： | 通过测定Cu2+和Zn2+溶液中的电导率的变化,研究壳聚糖(CTS)、壳聚糖-海藻酸钠共聚物(CTS-AGS)对Cu2+和Zn2+的吸附动力学特征,结果表明该吸附是以化学吸附为主要特征的单分子层吸附,通过计算不同情况下吸附速率常数,以及对吸附前后的扫描电镜分析,初步探讨其吸附机理。
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| 关 键 词： | 壳聚糖 海藻酸钠 共聚物 金属离子 吸附机理 |
| 文章编号： | 1003-6504（2008）01-0033-03 |
| 收稿时间： | 2007-09-23 |
| 修稿时间： | 2007-11-20 |
Kinetics of Adsorbing Cu2+ and Zn2+ by Chitosan and Its Copolymer |
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| ZHOU Jin-bo,YUAN Yi-hua,JIA De-min.Kinetics of Adsorbing Cu2+ and Zn2+ by Chitosan and Its Copolymer[J].Environmental Science and Technology,2008,31(1):33-35,44. |
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| Authors: | ZHOU Jin-bo YUAN Yi-hua JIA De-min |
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| Abstract: | Kinetic characteristics of adsorbing Cu2+ and Zn2+ by chitosan(CTS) and chitosan/sodium alginate copolymer(CTS-AGS) were studied by electric conductivity.Results showed that the adsorption was chemical process with single molecular layer as main characteristics.Through calculation of adsorption rate constant under different conditions and analysis of SEM different before adsorption and after adsorption,the adsorption mechanism was discussed. |
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| Keywords: | chitosan sodium alginate copolymer metal ion flocculation mechanism |
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