gamma-ray radiation-induced synthesis and Fe(III) ion adsorption of carboxymethylated chitosan hydrogels
文献类型：期刊论文
| 作者 | Wang, Min1; Xu, Ling1,2; Zhai, Maolin1; Peng, Jing1; Li, Jiuqiang1; Wei, Genshuan1 |
| 刊名 | CARBOHYDRATE POLYMERS
 |
| 出版日期 | 2008-11-04 |
| 卷号 | 74期号:3页码:498-503 |
| 关键词 | Carboxymethylated Chitosan Gamma-ray Radiation Hydrogel Fe(Iii) Ion adsorptIon |
| ISSN号 | 0144-8617 |
| DOI | 10.1016/j.carbpol.2008.04.008 |
| 英文摘要 | The carboxymethylated chitosan (CMCts) hydrogels were synthesized by gamma-ray radiation-induced cross-linking at paste-like state with the concentration of CMCts from 12% to 22%. The gel fraction firstly increased with adsorbed dose and leveled off at ca. 20 kGy. The diffusion behavior of water in CMCts gels was Fickian diffusion, and the swelling of CMCts gels was affected by pH and ionic strength. Preliminary crosslinking mechanism of CMCts with gamma-ray irradiation was discussed based on the FTIR. and sol-gel analysis. The adsorption kinetics study showed that the adsorption of Fe(III) ions onto CMCts gels was very fast (ca. 20 min) due to the coordination of Fe(III) ions with amino, hydroxyl and carboxyl groups of CMCts molecules. pH 4.7 was the optimum for the adsorption of Fe(III) ions onto CMCts gels. The maximum uptake of Fe(III) ions, based on Langmuir equation, was determined to be 18.5 mg/g gel. (c) 2008 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000259708200025 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64567]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhai, Maolin |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Dept Appl Chem, BNLMS, Beijing 100871, Peoples R China 2.Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Min,Xu, Ling,Zhai, Maolin,et al. gamma-ray radiation-induced synthesis and Fe(III) ion adsorption of carboxymethylated chitosan hydrogels[J]. CARBOHYDRATE POLYMERS,2008,74(3):498-503. |
| APA | Wang, Min,Xu, Ling,Zhai, Maolin,Peng, Jing,Li, Jiuqiang,&Wei, Genshuan.(2008).gamma-ray radiation-induced synthesis and Fe(III) ion adsorption of carboxymethylated chitosan hydrogels.CARBOHYDRATE POLYMERS,74(3),498-503. |
| MLA | Wang, Min,et al."gamma-ray radiation-induced synthesis and Fe(III) ion adsorption of carboxymethylated chitosan hydrogels".CARBOHYDRATE POLYMERS 74.3(2008):498-503. |
入库方式： OAI收割
来源：化学研究所
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