Radiation synthesis and Cr(VI) removal of cellulose microsphere adsorbent
文献类型：期刊论文
| 作者 | Zhang, Youwei1,2; Xu, Ling3; Zhao, Long4; Peng, Jing1,2; Li, Cancan1,2; Li, Jiuqiang1,2; Zhai, Maolin1,2 |
| 刊名 | CARBOHYDRATE POLYMERS
 |
| 出版日期 | 2012-04-15 |
| 卷号 | 88期号:3页码:931-938 |
| 关键词 | Cellulose Microsphere Radiation Grafting Styrene Adsorbent Cr(Vi) |
| ISSN号 | 0144-8617 |
| DOI | 10.1016/j.carbpol.2012.01.040 |
| 英文摘要 | A novel cellulose-based adsorbent was prepared by radiation-induced grafting of styrene onto the surface of cellulose microspheres, followed by acetylation and amination processes. The grafting yield was adjusted by the total absorbed dose, dose rate and the concentration of styrene. The structure of the adsorbent was characterized by micro-FTIR, XPS and SEM. The adsorption of Cr(VI) ions has been investigated as a function of contact time, adsorbent feed, pH, Cr(VI) and NaCl concentration. It was found that adsorption equilibrium could be achieved within 30 min for initial Cr(VI) of 100 mg L-1. The adsorption kinetics was well described by the pseudo-second order model equation, and the adsorption isotherm was better fitted by the Langmuir mode. The maximum theoretical Cr(VI) uptake of the adsorbent was 123.4 mg g(-1). The influence of NaCl concentration on Cr(VI) uptake and XPS analysis revealed that Cr(VI) ions were adsorbed through ion-exchange mechanism. (C) 2012 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000302196200018 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/48411]  |
| 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, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Key Lab Polymer Chem & Phys, Minist Educ, Beijing 100871, Peoples R China 3.Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Youwei,Xu, Ling,Zhao, Long,et al. Radiation synthesis and Cr(VI) removal of cellulose microsphere adsorbent[J]. CARBOHYDRATE POLYMERS,2012,88(3):931-938. |
| APA | Zhang, Youwei.,Xu, Ling.,Zhao, Long.,Peng, Jing.,Li, Cancan.,...&Zhai, Maolin.(2012).Radiation synthesis and Cr(VI) removal of cellulose microsphere adsorbent.CARBOHYDRATE POLYMERS,88(3),931-938. |
| MLA | Zhang, Youwei,et al."Radiation synthesis and Cr(VI) removal of cellulose microsphere adsorbent".CARBOHYDRATE POLYMERS 88.3(2012):931-938. |
入库方式： OAI收割
来源：化学研究所
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