| Potential of phosphate ion removal using an Al3+- cross-linked chitosan-g-poly(acrylic acid)/vermiculite ionic hybrid | |
| Department | 环境材料与生态化学研究发展中心 |
Zheng YA(郑易安) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2010 | |
| Source Publication | Adsorption Science & Technology
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| ISSN | 0263-6174 |
| Volume | 28Issue:1Pages:89-99 |
| Abstract | In this study, a composite, chitosan-g-poly(acrylic acid)/vermiculite, was prepared by aqueous dispersion polymerization using chitosan as the stabilizer, acrylic acid as the monomer and vermiculite as the inorganic additive. It was then cross-linked with common divalent or trivalent cations to obtain adsorbents with a higher affinity for phosphate ions. Factors influencing the adsorption capacity were investigated, the results indicating that the trivalent ion cross-linked hybrid exhibited a potential for the removal of phosphate ions and that a lower concentration of cross-linking agent could achieve the complete cross-linking of carboxylate groups within the composite. The adsorption of phosphate ions onto the developed adsorbent was pH-dependent, with a lower pH yielding a higher adsorption capacity. The Langmuir and Freundlich models were used to describe the adsorption data; the maximum adsorption capacity of 22.64 mg/g was comparable with that reported for other adsorbents. Desorption studies showed that the adsorbed phosphate ions were relatively difficult to remove from the hybrid material. |
| 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 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/119 |
| 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 | Zheng YA,Wang AQ,王爱勤 aqwang@licp.cas.cn. Potential of phosphate ion removal using an Al3+- cross-linked chitosan-g-poly(acrylic acid)/vermiculite ionic hybrid[J]. Adsorption Science & Technology,2010,28(1):89-99. |
| APA | 郑易安,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2010).Potential of phosphate ion removal using an Al3+- cross-linked chitosan-g-poly(acrylic acid)/vermiculite ionic hybrid.Adsorption Science & Technology,28(1),89-99. |
| MLA | 郑易安,et al."Potential of phosphate ion removal using an Al3+- cross-linked chitosan-g-poly(acrylic acid)/vermiculite ionic hybrid".Adsorption Science & Technology 28.1(2010):89-99. |
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| 20102818999.pdf（91KB） | 开放获取 | License | View Application Full Text | |||
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