Adsorption of iodide ions on a calcium alginate-silver chloridecomposite adsorbent
文献类型：期刊论文
| 作者 | Li, Quan ; Liu, Haining; Ye, Xiushen; Wu, Zhijian; Guo, Min; Zhang, Huifang
|
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2011 |
| 卷号 | 386期号:1-3页码:166-171 |
| 关键词 | Iodide Adsorption Silver chloride Calcium alginate Precipitation |
| 英文摘要 | A composite spherical adsorbent for iodide ions was prepared with silver chloride as an adsorption active component, and calcium alginate as a carrier. The adsorbent had an adsorption active component content of 0.96 mmol g(-1), a water content of 83%, and a point of zero charge (PZC) of 7.2. The kinetics and thermodynamics of iodide adsorption onto the adsorbent in aqueous solutions were investigated comprehensively, by considering the effects of initial iodide concentration, temperature, solution pH, and coexisting NaCl. The results exhibited that the initial adsorption rate increases with the increase in initial iodide concentration and temperature. In general, the equilibrium adsorption amount was found to be insensitive to coexisting NaCl, and initial solution pH in a range of 1-6. The dominant adsorption mechanism has been proved to be the precipitation transformation reaction. The composite adsorbent used in this study is easy to prepare, avoiding silver chloride from leaching, and has been proved to be an effective iodide adsorbent with an adsorption capacity of 1.1 mmol g(-1). (C) 2011 Elsevier B.V. All rights reserved. A composite spherical adsorbent for iodide ions was prepared with silver chloride as an adsorption active component, and calcium alginate as a carrier. The adsorbent had an adsorption active component content of 0.96 mmol g(-1), a water content of 83%, and a point of zero charge (PZC) of 7.2. The kinetics and thermodynamics of iodide adsorption onto the adsorbent in aqueous solutions were investigated comprehensively, by considering the effects of initial iodide concentration, temperature, solution pH, and coexisting NaCl. The results exhibited that the initial adsorption rate increases with the increase in initial iodide concentration and temperature. In general, the equilibrium adsorption amount was found to be insensitive to coexisting NaCl, and initial solution pH in a range of 1-6. The dominant adsorption mechanism has been proved to be the precipitation transformation reaction. The composite adsorbent used in this study is easy to prepare, avoiding silver chloride from leaching, and has been proved to be an effective iodide adsorbent with an adsorption capacity of 1.1 mmol g(-1). (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-08-22 |
| 源URL | [http://ir.isl.ac.cn/handle/363002/1870]  |
| 专题 | 青海盐湖研究所_青海盐湖研究所知识仓储 青海盐湖研究所_盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Li, Quan,Liu, Haining,Ye, Xiushen,et al. Adsorption of iodide ions on a calcium alginate-silver chloridecomposite adsorbent[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2011,386(1-3):166-171. |
| APA | Li, Quan,Liu, Haining,Ye, Xiushen,Wu, Zhijian,Guo, Min,&Zhang, Huifang.(2011).Adsorption of iodide ions on a calcium alginate-silver chloridecomposite adsorbent.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,386(1-3),166-171. |
| MLA | Li, Quan,et al."Adsorption of iodide ions on a calcium alginate-silver chloridecomposite adsorbent".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 386.1-3(2011):166-171. |
入库方式： OAI收割
来源：青海盐湖研究所
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