| 尿素基纤维的制备及对水中Cu2+和Cd2+的吸附 |
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| 引用本文： | 刘莉,朱晓帆,刘家丽,侯旭.尿素基纤维的制备及对水中Cu2+和Cd2+的吸附[J].化工环保,2007,27(2):184-187. |
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| 作者姓名： | 刘莉 朱晓帆 刘家丽 侯旭 |
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| 作者单位： | 四川大学,建筑与环境学院,四川,成都,610065;四川大学,分析测试中心,四川,成都,610065 |
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| 摘 要： | 以棉纤维为原料，经氯化和取代反应，制得尿素基纤维并用于水中Cu^2＋和Cd^2＋的吸附，考察了各种因素对吸附效果的影响。尿素基纤维对Cu^2＋和Cd^2＋的吸附可用Langmuir等温吸附方程描述，吸附过程可看成单层吸附。较佳吸附条件：重金属离子溶液pH为5，流量为7mL／min。用过的尿素基纤维经2mol／L的盐酸洗脱再生后，对Cu^2＋的吸附、解吸、再吸附的性能良好，可重复使用。
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| 关 键 词： | 棉纤维 尿素基纤维 铜离子 镉离子 吸附 |
| 文章编号： | 1006-1878(2007)02-0184-04 |
| 修稿时间： | 2006年10月30 |
Preparation of Urea-based Fiber and Adsorption of Cu2+ and Cd2+ in Water |
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| Liu Li,Zhu Xiaofan,Liu Jiali,Hou Xu.Preparation of Urea-based Fiber and Adsorption of Cu2+ and Cd2+ in Water[J].Environmental Protection of Chemical Industry,2007,27(2):184-187. |
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| Authors: | Liu Li Zhu Xiaofan Liu Jiali Hou Xu |
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| Abstract: | Using cotton fiber as raw material,urea-based fiber was prepared via chlorination and substitution and used to adsorb Cu2+ and Cd2+ in water.The factors affecting adsorption were studied.The adsorption of Cu2+ and Cd2+ on urea-based fiber can be described using Langmuir equation and regarded as monolayer adsorption.The better adsorption conditions are as follows: heavy metal ion solution pH 5 and flow rate 7 mL/min.After regenerated by elution with 2 mol/L HCl,the used urea-based fiber can be reused with a good ability of adsorption-desorption-readsorption for Cu2+. |
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| Keywords: | cotton fiber urea-based fiber copper ion cadmium ion adsorption |
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