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题名: Strontium and calcium ion adsorption by molecularly imprinted hybrid gel
作者: 李权 ;  刘海宁 ;  Liu, Tengyun ;  Guo, Min ;  卿彬菊 ;  叶秀深 ;  吴志坚
刊名: CHEMICAL ENGINEERING JOURNAL
出版日期: 2010
卷号: 157, 期号:2-3, 页码:401-407
英文摘要: The adsorption of strontium and calcium ions by strontium ion-imprinted hybrid gel derived from bis(trimethoxysilylpropyl)amine (TSPA) was comparatively studied. The effects of initial solution pH, ionic strength, initial metal ion concentration, and temperature on the equilibrium adsorption amount and the separation factor between strontium and calcium ions were comprehensively investigated. In description of the adsorption kinetics, the pseudo second-order model was found to be more suitable than the pseudo first-order model. In general, the equilibrium adsorption amount of both Sr(2+) and Ca(2+) ions was found to increase with the increase in both the initial metal ion concentration and pH, but not to be so sensitive to ionic strength and temperature. The separation of Sr(2+) and Ca(2+) ions could rely on the difference in adsorption kinetics, because Sr(2+) ions were found to adsorb more rapidly than Ca(2+) ions at the early adsorption stage. (C) 2009 Elsevier B.V. All rights reserved. The adsorption of strontium and calcium ions by strontium ion-imprinted hybrid gel derived from bis(trimethoxysilylpropyl)amine (TSPA) was comparatively studied. The effects of initial solution pH, ionic strength, initial metal ion concentration, and temperature on the equilibrium adsorption amount and the separation factor between strontium and calcium ions were comprehensively investigated. In description of the adsorption kinetics, the pseudo second-order model was found to be more suitable than the pseudo first-order model. In general, the equilibrium adsorption amount of both Sr(2+) and Ca(2+) ions was found to increase with the increase in both the initial metal ion concentration and pH, but not to be so sensitive to ionic strength and temperature. The separation of Sr(2+) and Ca(2+) ions could rely on the difference in adsorption kinetics, because Sr(2+) ions were found to adsorb more rapidly than Ca(2+) ions at the early adsorption stage. (C) 2009 Elsevier B.V. All rights reserved.
收录类别: SCI
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/1929
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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Recommended Citation:
Li, Quan,Liu, Haining,Liu, Tengyun,et al. Strontium and calcium ion adsorption by molecularly imprinted hybrid gel[J]. CHEMICAL ENGINEERING JOURNAL,2010,157(2-3):401-407.
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