Chitosan-g-poly(acrylic acid) hydrogel with crosslinked polymeric networks for Ni2+ recovery
文献类型：期刊论文
| 作者 | Zheng YA(郑易安) ; Huang DJ(黄大建); Wang AQ(王爱勤)
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| 刊名 | Analytica Chimica Acta
 |
| 出版日期 | 2011 |
| 卷号 | 687期号:2页码:193-200 |
| 关键词 | Hydrogel Adsorption Nickel Recovery Mechanism |
| ISSN号 | 0003-2670 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | In this study, chitosan-g-poly(acrylic acid) (CTS-g-PAA) hydrogel with crosslinked polymeric networks was prepared from an aqueous dispersion polymerization and then used as the adsorbent to recover a valuable metal, Ni2+. The adsorption capacity of CTS-g-PAA for Ni2+ was evaluated and the adsorption kinetics was investigated using Voigt-based model and pseudo-second-order model. In addition, the effects of pH values and coexisting heavy metal ions such as Cu2+ and Pb2+ on the adsorption capacity were studied. The results indicate that the as-prepared adsorbent has faster adsorption rate and higher adsorption capacity for Ni2+ recovery, with the maximum adsorption capacity of 161.80mgg?1. In a wide pH range of 3-7, the adsorption capacity keeps almost the same, and even under competitive conditions, the adsorption capacity of CTS-g-PAA for Ni2+ is observed to be as high as 54.47mgg?1. Finally, the adsorption performance of CTS-g-PAA for Ni2+ in real water sample and the reusability of the as-prepared adsorbent were evaluated, and also the controlled adsorption mechanism was proposed. |
| 学科主题 | 功能高分子 |
| 收录类别 | SCI |
| 资助信息 | 国家自然科学基金项目(20877077) |
| 语种 | 英语 |
| WOS记录号 | WOS:000287564700012 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://210.77.64.217/handle/362003/82]  |
| 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 | Zheng YA,Huang DJ,Wang AQ. Chitosan-g-poly(acrylic acid) hydrogel with crosslinked polymeric networks for Ni2+ recovery[J]. Analytica Chimica Acta,2011,687(2):193-200. |
| APA | 郑易安,黄大建,&王爱勤.(2011).Chitosan-g-poly(acrylic acid) hydrogel with crosslinked polymeric networks for Ni2+ recovery.Analytica Chimica Acta,687(2),193-200. |
| MLA | 郑易安,et al."Chitosan-g-poly(acrylic acid) hydrogel with crosslinked polymeric networks for Ni2+ recovery".Analytica Chimica Acta 687.2(2011):193-200. |
入库方式： OAI收割
来源：兰州化学物理研究所
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