| 壳聚糖铁(Ⅲ)配合物吸附动力学研究 |
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| 引用本文： | 许晖,孙兰萍,张胜义,赵大庆.壳聚糖铁(Ⅲ)配合物吸附动力学研究[J].食品科学,2007,28(1):63-67. |
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| 作者姓名： | 许晖 孙兰萍 张胜义 赵大庆 |
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| 作者单位： | 蚌埠学院食品与生物工程系； 安徽大学化学化工学院； 蚌埠学院食品与生物工程系 安徽蚌埠233030； 安徽蚌埠233030安徽大学化学化工学院； 安徽合肥230039； 安徽蚌埠233030； |
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| 摘 要： | 采用非均相吸附法制备了壳聚糖铁(Ⅲ)配合物,用紫外光谱(UV)、红外光谱(IR)对配合物的结构进行了表征;研究了壳聚糖对Fe3+ 的吸附动力学特性。实验结果表明,壳聚糖与Fe3+之间发生了配位作用,壳聚糖分子中参与配位反应的主要是-NH2、-OH及少量的-NHCOCH3;壳聚糖对Fe3+的吸附行为可用Langmuir单分子层吸附机理解释,且求得吸附表观活化能为3.6476kJ/mol。
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| 关 键 词： | 壳聚糖 铁(Ⅲ)离子 配合物 吸附动力学 |
| 文章编号： | 1002-6630（2007）01-0063-05 |
| 修稿时间： | 2005-11-09 |
Study on Adsorption Kinetics of the Chelate Compound of Chitosan with Ferric Ions |
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| XU Hui,SUN Lan-ping,ZHANG Sheng-yi,ZHAO Da-qing.Study on Adsorption Kinetics of the Chelate Compound of Chitosan with Ferric Ions[J].Food Science,2007,28(1):63-67. |
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| Authors: | XU Hui SUN Lan-ping ZHANG Sheng-yi ZHAO Da-qing |
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| Affiliation: | 1.Department of Food and Bioengineering, Bengbu College, Bengbu 233030, China; 2.College of Chemistry and Chemicial Engineering, Anhui University, Hefei 230039, China |
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| Abstract: | In this paper the structure of the chitosan-ferric(CTS-Fe3+) complex prepared by non-homogeneous adsorption was confirmed by IR and UVspectra, and the isothermal adsorption kinetics of CTS for ferric ions has also been investigated. The experiments indicated that the chelate reaction occurrs between -NH2, -OH, -NHCOCH3 of CTS and ferric ions, the adsorption is satisfied with the Langmuir-single-molecule-layer adsorption mechanism, and the apparent adsorption activation energy is 3.6476kJ/mol. |
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| Keywords: | chitosan ferricion chelate adsorption kinetics |
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