| 壳聚糖吸附亚硒酸的动力学研究 |
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| 引用本文： | 孙兰萍,张胜义,许晖,赵大庆,张斌. 壳聚糖吸附亚硒酸的动力学研究[J]. 食品科学, 2006, 27(4): 92-95 |
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| 作者姓名： | 孙兰萍 张胜义 许晖 赵大庆 张斌 |
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| 作者单位： | 安徽大学化学化工学院； 蚌埠学院食品与生物工程系 |
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| 摘 要： | 研究了壳聚糖对亚硒酸的吸附性能,测定了吸附等温线和吸附动力学曲线。实验结果表明壳聚糖对亚硒酸有较强的吸附能力,吸附容量受pH值影响较大,其吸附行为符合Langmuir单分子层吸附模型。紫外和红外光谱分析结果也表明壳聚糖与亚硒酸之间发生的是简单的物理吸附作用,而非配合反应。
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| 关 键 词： | 壳聚糖 亚硒酸 吸附等温线 吸附动力学 |
| 文章编号： | 1002-6630（2006）04-0092-04 |
| 收稿时间： | 2005-06-16 |
| 修稿时间： | 2005-06-16 |
Study on Adsorption Kinetics of Selenious Acid on Chitosan |
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| SUN Lan-Ping,ZHANG Sheng-Yi,XU Hui,ZHAO Da-Qing,ZHANG Bin. Study on Adsorption Kinetics of Selenious Acid on Chitosan[J]. Food Science, 2006, 27(4): 92-95 |
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| Authors: | SUN Lan-Ping ZHANG Sheng-Yi XU Hui ZHAO Da-Qing ZHANG Bin |
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| Affiliation: | 1.College of Chemistry, Anhui University, Hefei 230039, China; 2.Department of Food and Bioengineering, Bengbu College, Bengbu 233030, China |
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| Abstract: | The adsorption of selenious acid by chitosan(CTS) has been investigated. The adsorption isothermal and kinetic curves have been determined. It is found that the adsorption capacity is highly affected by pH and the adsorption action fits the Langmuir model which describes the adsorption of monolayer. The IR and UV assays also indicate that the adsorption of selenious acid by chitosan is just a simple physical process instead of a chemical one. |
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| Keywords: | chitosan selenious acid. adsorption isothermal curve adsorption kinetics |
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