| Adsorption of lead ions from aqueous solution by using carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite hydrogel composites | |
| Department | 环境材料与生态化学研究发展中心 |
Liu Y(刘毅) ; Wang WB(王文波); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2010 | |
| Source Publication | Desalination
 |
| ISSN | 0011-9164 |
| Volume | 259Issue:1-3Pages:258-264 |
| Abstract | A series of carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite (CMC-g-PAA/APT) hydrogel composites was prepared and used for Pb(II) adsorption from aqueous solution. The effects of APT content, pH value, contact time, initial concentration and ionic strength on adsorption were investigated. Results from kinetic experiments showed that adsorption rate of Pb(II) ions onto the composite was quite fast. Adsorption equilibrium may be reached within 60 min and more than 90% of the equilibrium adsorption was achieved within the initial 10 min and 30 min for the composites with 5 wt.% and 20 wt.% APT, respectively. The adsorption process can be well described by the pseudo-second-order kinetic model, and the equilibrium adsorption isotherm was closely fitted with the Langmuir model. FTIR spectra before and after adsorption of Pb(II) on the composite revealed that complexation was considered as the main adsorption mechanism. |
| Keyword | Hydrogel Composite Carboxymethyl Cellulose Attapulgite Lead Adsorption Complexation |
| 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/362003/134 |
| 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 | Liu Y,Wang WB,Wang AQ,et al. Adsorption of lead ions from aqueous solution by using carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite hydrogel composites[J]. Desalination,2010,259(1-3):258-264. |
| APA | 刘毅,王文波,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2010).Adsorption of lead ions from aqueous solution by using carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite hydrogel composites.Desalination,259(1-3),258-264. |
| MLA | 刘毅,et al."Adsorption of lead ions from aqueous solution by using carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite hydrogel composites".Desalination 259.1-3(2010):258-264. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 201025913258264.pdf（632KB） | 开放获取 | License | View Application Full Text | |||
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