| Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WJ(王文己); Chen H(陈浩); Wang AQ(王爱勤) ; 王爱勤 aqwang@licp.cas.cn
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| 2007 | |
| Source Publication | Separation and Purification Technology
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| ISSN | 1383-5866 |
| Volume | 55Issue:2Pages:157-164 |
| Abstract | 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. |
| Keyword | Palygorskite Adsorption Capacity Cd(Ii) Acid Treatment Heat Treatment Isotherm |
| Subject Area | 胶体与界面 |
| Funding Organization | 甘肃省科技攻关项目(2GS052-A52-002-07) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/202 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Wang WJ,Chen H,Wang AQ,et al. Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite[J]. Separation and Purification Technology,2007,55(2):157-164. |
| APA | 王文己,陈浩,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2007).Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite.Separation and Purification Technology,55(2),157-164. |
| MLA | 王文己,et al."Adsorptioncharacteristics of Cd(II) from aqueoussolution onto activatedpalygorskite".Separation and Purification Technology 55.2(2007):157-164. |
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| 2007552157164.pdf（386KB） | 开放获取 | License | View Application Full Text | |||
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