| 交联羧甲基魔芋葡甘聚糖吸附Cu~(2+)的机理 |
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| 引用本文： | 王金玲,沈敏,瞿阳,薛爱芳,陈浩.交联羧甲基魔芋葡甘聚糖吸附Cu~(2+)的机理[J].湖北农业科学,2009,48(1). |
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| 作者姓名： | 王金玲 沈敏 瞿阳 薛爱芳 陈浩 |
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| 作者单位： | 1. 华中农业大学,理学院,武汉430070
2. 华中农业大学,理学院,武汉430070;华中农业大学,食品科技学院,武汉430070 |
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| 摘 要： | 研究了CCMKGM对Cu2+的吸附热力学行为,用FTIR和RAMAN对吸附产物进行了结构表征,同时考察了不同解吸剂对吸附于CCMKGM上Cu2+解吸效果的影响.结果表明,CCMKGM主要以配位的形式吸附Cu2+:CCMKGM对Cu2+的吸附行为同时符合Langmuir和Freundlich等温方程;吸附为自发的、吸热的熵增加过程.
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| 关 键 词： | 交联羧甲基魔芋葡甘聚糖(CCMKGM) 吸附机理 |
Mechanism on Adsorption Cu~(2+) by Crosslinked Carboxymethyl Konjac Glucomannan |
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| WANG Jin-ling,SHEN Min,QU Yang,XIE Ai-fang,CHEN Hao.Mechanism on Adsorption Cu~(2+) by Crosslinked Carboxymethyl Konjac Glucomannan[J].Hubei Agricultural Sciences,2009,48(1). |
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| Authors: | WANG Jin-ling SHEN Min QU Yang XIE Ai-fang CHEN Hao |
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| Institution: | a.Science College;b.Food Science and Technology College;Huazhong Agricultural University;Wuhan 430070;China |
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| Abstract: | In this paper the adsorption thermodynamics properties of CCMKGM with Cu2+ were investigated.The structure of adsorption products were characterized by the FTIR and RAMAN.The influence of different elution on desorption was stud-ied.The results showed that CCMKGM adsorbed Cu2+ mainly by complication,the experimental date fit well into the Lang-muir and Freundlich adsorption isotherm.The adsorption was a spontaneous endothermic process of increased entropy. |
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| Keywords: | Cu2 |
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