| 交联壳聚糖多孔微球对染料的吸附平衡及吸附动力学分析 |
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| 引用本文： | 丁世敏,封享华,汪玉庭,彭祺.交联壳聚糖多孔微球对染料的吸附平衡及吸附动力学分析[J].分析科学学报,2005,21(2):127-130. |
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| 作者姓名： | 丁世敏 封享华 汪玉庭 彭祺 |
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| 作者单位： | 武汉大学资源与环境科学学院,武汉,430072;重庆涪陵师范学院化学系,重庆涪陵,408003;武汉大学资源与环境科学学院,武汉,430072 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 研究了交联壳聚糖多孔微球对染料的吸附平衡规律，探讨了染料溶液在不同的初始浓度、pH值及不同吸附剂用量条件下吸附动力学规律及吸附动力学控制机理。结果表明，壳聚糖微球对染料的吸附规律可较好地符合Langmuir吸附等温式，吸附动力学模型可以用表观二级速率方程来描述。
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| 关 键 词： | 交联壳聚糖 多孔微球 吸附平衡 动力学 |
| 文章编号： | 1006-6144(2005)02-0127-04 |
| 修稿时间： | 2004年6月30日 |
Equilibrium and Kinetic Analysis of Adsorption for Dyestuff by Cross-linked Chitosan Porous Microbeads |
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| DING Shi-min,FENG Xiang-hua,WANG Yu-ting,PENG Qi.Equilibrium and Kinetic Analysis of Adsorption for Dyestuff by Cross-linked Chitosan Porous Microbeads[J].Journal of Analytical Science,2005,21(2):127-130. |
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| Authors: | DING Shi-min FENG Xiang-hua WANG Yu-ting PENG Qi |
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| Abstract: | Equilibrium of adsorption of dyes on cross-linked chitosan porous microbeads was studied. Kinetic modeling and rate control mechanisms on various conditions such as initial dyes concentration, pH value and adsorbent dosage were investigated. The results showed that the adsorption law of dyes on cross-linked chitosan porous microbeads fitted very well with the Langmuir model and dynamical data fitted well with the second-order kinetic model. |
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| Keywords: | Cross-linked chitosan Porous microbeads Adsorption equilibrium Kinetics |
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