| Recovery of silver (I) using a thiourea-modified chitosan resin | |
Wang, Lin1,2 ; Xing, Ronge1; Liu, Song1; Yu, Huahua1; Qin, Yukun1,2; Li, Kecheng1,2; Feng, Jinhua1,2; Li, Rongfeng1,2; Li, Pengcheng1
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| 2010-08-15 | |
| 发表期刊 | JOURNAL OF HAZARDOUS MATERIALS
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| ISSN | 0304-3894 |
| 卷号 | 180期号:1-3页码:577-582 |
| 文章类型 | Article |
| 摘要 | This work describes the preparation of a chelating resin from chemically modified chitosan. The resin was synthesized by using O-carboxymethylated chitosan to cross-link a polymeric Schiffs base of thiourea/glutaraldehyde and characterized by IR. Batch method was applied for testing the resin's adsorption behavior. Adsorption experiments showed the resin had good adsorption capacity and high selectivity for Ag(I) in aqueous solution. The maximum uptake of Ag(I) exhibited was 3.77 mmol/g, at pH 4.0. The results also indicated that the adsorption process was exothermic and fit well with the pseudosecond-order kinetic model. Ag(I) desorption could reach 99.23% using 0.5 M thiourea-2.0 M HCl solution. (C) 2010 Elsevier B.V. All rights reserved.; This work describes the preparation of a chelating resin from chemically modified chitosan. The resin was synthesized by using O-carboxymethylated chitosan to cross-link a polymeric Schiffs base of thiourea/glutaraldehyde and characterized by IR. Batch method was applied for testing the resin's adsorption behavior. Adsorption experiments showed the resin had good adsorption capacity and high selectivity for Ag(I) in aqueous solution. The maximum uptake of Ag(I) exhibited was 3.77 mmol/g, at pH 4.0. The results also indicated that the adsorption process was exothermic and fit well with the pseudosecond-order kinetic model. Ag(I) desorption could reach 99.23% using 0.5 M thiourea-2.0 M HCl solution. (C) 2010 Elsevier B.V. All rights reserved. |
| 关键词 | Recovery Chitosan Thiourea Resin Silver Adsorption |
| 学科领域 | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| DOI | 10.1016/j.jhazmat.2010.04.072 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000279459600073 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/6158 |
| 专题 | 海洋生物技术研发中心 实验海洋生物学重点实验室 海洋环境工程技术研究发展中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Lin,Xing, Ronge,Liu, Song,et al. Recovery of silver (I) using a thiourea-modified chitosan resin[J]. JOURNAL OF HAZARDOUS MATERIALS,2010,180(1-3):577-582. |
| APA | Wang, Lin.,Xing, Ronge.,Liu, Song.,Yu, Huahua.,Qin, Yukun.,...&Li, Pengcheng.(2010).Recovery of silver (I) using a thiourea-modified chitosan resin.JOURNAL OF HAZARDOUS MATERIALS,180(1-3),577-582. |
| MLA | Wang, Lin,et al."Recovery of silver (I) using a thiourea-modified chitosan resin".JOURNAL OF HAZARDOUS MATERIALS 180.1-3(2010):577-582. |
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