| 氯丙酸改性壳聚糖对Hg2+的吸附性能研究 |
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| 引用本文： | 李爱阳. 氯丙酸改性壳聚糖对Hg2+的吸附性能研究[J]. 工业水处理, 2009, 29(7) |
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| 作者姓名： | 李爱阳 |
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| 作者单位： | 湖南工学院化工系,湖南衡阳,421002 |
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| 基金项目： | 湖南省教育厅科研计划项目，衡阳市工业科研开发计划项目 |
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| 摘 要： | 研究了改性壳聚糖对重金属Hg2+的吸附特性,包括吸附动力学和吸附等温式,且研究了pH、反应时间对其吸附性能的影响.结果表明:羧乙基壳聚糖对Hg2+的吸附在不同温度下符合Freundlich和Langmuir吸附等温式,吸附过程动力学适合二级反应.当pH为4～6,吸附时间为180 min时,羧乙基壳聚糖对Hg2+有较高吸附效果.
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| 关 键 词： | 氯丙酸 壳聚糖 吸附等温式 吸附动力学 |
Study on the adsorption behavior of Hg~(2+) by chloropropionic acid modification chitosan |
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| Li Aiyang. Study on the adsorption behavior of Hg~(2+) by chloropropionic acid modification chitosan[J]. Industrial Water Treatment, 2009, 29(7) |
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| Authors: | Li Aiyang |
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| Affiliation: | Chemical Engineering Department;Hunan Institute of Technology;Hengyang 421002;China |
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| Abstract: | The adsorption behavior of Hg2+ by modification chitosans has been investigated.It includes the adsorption kinetics as well as adsorption isotherm.The factors that might affect the adsorption behavior such as pH and reaction time have also been investigated.By means of analyzing the fitting of experimental data,utilizing the related mathematic mode,the results show that thermodynamic data of carboxyethyl-chitosan adsorption Hg2+ fit the Freundlich and Langmuir adsorption isotherms at different temperatures.... |
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| Keywords: | chloropropionie acid chitosan adsorption isotherm adsorption kinetics |
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