| Adsorption of Pb(II) from aqueous solution by chitosan-g-poly(acrylic acid)/attapulgite/sodium humate composite hydrogels | |
| Department | 环境材料与生态化学研究发展中心 |
Zhang JP(张俊平) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2010 | |
| Source Publication | Journal of Chemical & Engineering Data
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| ISSN | 0021-9568 |
| Volume | 55Issue:7Pages:2379-2384 |
| Abstract | A series of chitosan-g-poly(acrylic acid)/attapulgite/sodium humate (CTS-g-PAA/APT/SH) composite hydrogels incorporated with various amounts of APT were used as adsorbents for the removal of Pb(II) from aqueous solution. The effects of adsorption (pH and concentration of Pb(II) in solution, dosage and particle size of composite hydrogels) and desorption (the kind and concentration of desorbing agent, recyclability) parameters are discussed in detail from use of a batch adsorption technique. The results showed that the adsorption capacity of the CTS-g-PAA/APT/SH composite hydrogels for Pb(II) increases with increasing pH and concentration of Pb(II) in solution but decreases with increasing adsorbent dosage. It is found that the composite hydrogel with a particle size of (40 to 100) mesh is an appropriate choice. The adsorption isotherms of the CTS-g-PAA/APT/SH composite hydrogels for Pb(II) could be described very well by the Langmuir equation, but not the Freundlich equation. Considering the economy and performance, 0.05 M HCl solution is the best desorbing agent. The introduced APT and SH are a benefit for recycling the composite hydrogel, and the adsorption capacity is still higher than 590 mg· g-1 after five consecutive adsorption-desorption processes. |
| Subject Area | 功能高分子 |
| Funding Organization | 国家自然科学基金项目(20877077) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/118 |
| 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 | Zhang JP,Wang AQ,王爱勤 aqwang@licp.cas.cn. Adsorption of Pb(II) from aqueous solution by chitosan-g-poly(acrylic acid)/attapulgite/sodium humate composite hydrogels[J]. Journal of Chemical & Engineering Data,2010,55(7):2379-2384. |
| APA | 张俊平,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2010).Adsorption of Pb(II) from aqueous solution by chitosan-g-poly(acrylic acid)/attapulgite/sodium humate composite hydrogels.Journal of Chemical & Engineering Data,55(7),2379-2384. |
| MLA | 张俊平,et al."Adsorption of Pb(II) from aqueous solution by chitosan-g-poly(acrylic acid)/attapulgite/sodium humate composite hydrogels".Journal of Chemical & Engineering Data 55.7(2010):2379-2384. |
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| 201055723792384.pdf（843KB） | 开放获取 | License | View Application Full Text | |||
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