Adsorption characteristics of cd(ii) from aqueous solution onto activated palygorskite
文献类型：期刊论文
| 作者 | Wang, Wenji; Chen, Hao; Wang, Aiqin |
| 刊名 | Separation and purification technology
 |
| 出版日期 | 2007-06-15 |
| 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 |
| DOI | 10.1016/j.seppur.2006.11.015 |
| 通讯作者 | Wang, wenji(aqwang@lzb.ac.cn) |
| 英文摘要 | 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 aqueous solutions. 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 activated palygorskite increased with increasina the hci 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 degrees 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. (c) 2006 elsevier b.v. all rights reserved. |
| WOS关键词 | HEAVY-METALS ; MULOORINA ILLITE ; REMOVAL ; SOILS ; CADMIUM ; SEPIOLITE ; LEAD ; MONTMORILLONITE ; CHEMISTRY ; KINETICS |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000247122500003 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382666 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Wenji |
| 作者单位 | 1.Chinese Acad Sci, Ctr Eco Mat & Green Chem, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Wenji,Chen, Hao,Wang, Aiqin. Adsorption characteristics of cd(ii) from aqueous solution onto activated palygorskite[J]. Separation and purification technology,2007,55(2):157-164. |
| APA | Wang, Wenji,Chen, Hao,&Wang, Aiqin.(2007).Adsorption characteristics of cd(ii) from aqueous solution onto activated palygorskite.Separation and purification technology,55(2),157-164. |
| MLA | Wang, Wenji,et al."Adsorption characteristics of cd(ii) from aqueous solution onto activated palygorskite".Separation and purification technology 55.2(2007):157-164. |
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来源：中国科学院大学
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