Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite
文献类型：期刊论文
| 作者 | Wang AQ(王爱勤)
|
| 刊名 | Separation and Purification Technology
 |
| 出版日期 | 2007 |
| 卷号 | 55期号:2页码:157-164 |
| 关键词 | Palygorskite Adsorption capacity Cd(II) Acid treatment Heat treatment Isotherm |
| ISSN号 | 1383-5866 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | A series of activated palygorskites were prepared by acid treatment and heat treatment, and the activated samples were applied as adsorbents for the removal of Cd(II) from aqueoussolutions. The effects of various experimental parameters were investigated using a batch adsorption technique. Results showed that the adsorption capacity of the acid-treated palygorskite for Cd(II) increased with the increase of the concentration of initial Cd(II) solution, contact time and pH of initial suspension. It was found that the adsorption capacity of activatedpalygorskite increased with increasing the HCl concentration and calcination temperature, and the maximum adsorption capacity of acid-treated and heat-treated palygorskites for Cd(II) was obtained with 12 mol/L HCl and at about 300 °C. The adsorption isotherms of activated palygorskites for Cd(II) could be described by both Langmuir and Freundlich equations, and the Freundlich model is better to represent the adsorption process. The final pH values of the solution in all adsorption experiment were also measured. In addition, the interactions at the clay–water interface and the Cd(II) adsorption mechanisms onto the activated palygorskites were discussed. |
| 学科主题 | 胶体与界面 |
| 收录类别 | SCI |
| 资助信息 | 甘肃省科技攻关项目(2GS052-A52-002-07) |
| 语种 | 英语 |
| 公开日期 | 2012-09-02 |
| 源URL | [http://210.77.64.217/handle/362003/202]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 推荐引用方式 GB/T 7714 | Wang AQ. Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite[J]. Separation and Purification Technology,2007,55(2):157-164. |
| APA | 王爱勤.(2007).Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite.Separation and Purification Technology,55(2),157-164. |
| MLA | 王爱勤."Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite".Separation and Purification Technology 55.2(2007):157-164. |
入库方式： OAI收割
来源：兰州化学物理研究所
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