| 胺基化壳聚糖微球上染料的吸附平衡和动力学 |
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| 引用本文： | 陈志华,陈盛.胺基化壳聚糖微球上染料的吸附平衡和动力学[J].广州化学,2004,29(4):29-33. |
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| 作者姓名： | 陈志华 陈盛 |
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| 作者单位： | 福建师范大学,化学与材料学院,福建,福州,350007;福建师范大学,化学与材料学院,福建,福州,350007 |
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| 摘 要： | 采用胺基化壳聚糖微球作为吸附剂,对三种阴离子偶氮染料——甲基橙MOMethylOrange],活性艳红RR2ReactiveRed2]和直接黑DB19DirectBlack19]进行吸附,对此过程的吸附平衡和吸附动力学进行了研究。结果表明,三种染料的吸附体系是以物理吸附为主,兼有化学吸附,属多层吸附;二级速率方程描述三种染料在胺基化壳聚糖微球上的吸附行为比较贴切。
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| 关 键 词： | 染料 壳聚糖 吸附平衡 吸附动力学 |
| 文章编号： | 1009-220X(2004)04-0029-05 |
| 修稿时间： | 2004年5月18日 |
Adsorption Equilibrium and Kinetic of Dyes onto Aminated Chitosan Microspheres |
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| CHEN Zhi-hua,CHEN Sheng.Adsorption Equilibrium and Kinetic of Dyes onto Aminated Chitosan Microspheres[J].Guangzhou Chemistry,2004,29(4):29-33. |
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| Authors: | CHEN Zhi-hua CHEN Sheng |
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| Abstract: | It was aimed at testing the kinetic adsorption of three anion azo dyes(MO,RR2 and DB19)on aminated chitosan microspheres and their equilibrium. The results showed that under proper conditions,the adsorption which belonged to multilayer adsorption was mainly physical adsorption,with chemical adsorption at the same time. The dynamic data fitted very well with the second-order kinetic model. |
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| Keywords: | dyes chitosan adsorption equilibrium kinetic |
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