Radiation-induced graft polymerization for the preparation of a highly efficient UHMWPE fibrous adsorbent for Cr(VI) removal
文献类型：期刊论文
| 作者 | Gao, QH; Hua, JT; Li, R; Xing, Z; Pang, LJ; Zhang, MX; Xu, L; Wu, GZ |
| 刊名 | RADIATION PHYSICS AND CHEMISTRY
 |
| 出版日期 | 2017 |
| 卷号 | 130页码:92-102 |
| 关键词 | Uhmwpe Fiber Radiation-induced Graft Polymerization Cr(Vi) Adsorption Reusable Fibrous Adsorbent |
| ISSN号 | 0969-806X |
| DOI | 10.1016/j.radphyschem.2016.08.004 |
| 文献子类 | 期刊论文 |
| 英文摘要 | A novel fibrous adsorbent containing amine and quaternary ammonium groups was prepared by radiation-induced graft of glycidyl methacrylate (GMA) onto ultra-high molecular weight polyethylene (UHMWPE) fiber and further modifying with triethylenetetramine (TETA) and glycidyl trimethylammonium chloride (GTA). The ATR-IR spectra and SEM observation demonstrated that amine and quaternary ammonium groups were immobilized onto the surface of UHMWPE fiber. The principal factors affecting the adsorption of Cr(VI) ions have been investigated including pH of the aqueous solution, contact time, temperature and coexisting anions. This novel fibrous adsorbent could effectively adsorb Cr(VI) in the range of pH 1-9, and the maximum adsorption capacity reached 295 mg/g at pH 3 and 25 degrees C based on the Langmuir isotherm. It was found that adsorption equilibrium could be achieved within 2 h for initial Cr(VI) of 100 mg/L, following the pseudo-second order model. The effect of coexisting anions (including SO42-, H2PO4-, NO3- and Cl-) on the uptake of Cr(VI) was investigated in detail. Additionally, the adsorption saturated fiber could be regenerated by soaking in 0.5 mol/L NaOH solution, and the adsorption performance of this adsorbent could be maintained at 90% after eight cycles of adsorption-desorption. ATR-IR and XPS analysis revealed that Cr(VI) ions were adsorbed on the fiber adsorbent through ion exchange mechanism. (C) 2016 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000388777200015 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/27428]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Gao, QH,Hua, JT,Li, R,et al. Radiation-induced graft polymerization for the preparation of a highly efficient UHMWPE fibrous adsorbent for Cr(VI) removal[J]. RADIATION PHYSICS AND CHEMISTRY,2017,130:92-102. |
| APA | Gao, QH.,Hua, JT.,Li, R.,Xing, Z.,Pang, LJ.,...&Wu, GZ.(2017).Radiation-induced graft polymerization for the preparation of a highly efficient UHMWPE fibrous adsorbent for Cr(VI) removal.RADIATION PHYSICS AND CHEMISTRY,130,92-102. |
| MLA | Gao, QH,et al."Radiation-induced graft polymerization for the preparation of a highly efficient UHMWPE fibrous adsorbent for Cr(VI) removal".RADIATION PHYSICS AND CHEMISTRY 130(2017):92-102. |
入库方式： OAI收割
来源：上海应用物理研究所
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