| One-step in situ fabrication of a granular semi-IPN hydrogel based on chitosan and gelatin for fast and efficient adsorption of Cu2+ ion | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WB(王文波)1 ; Huang DJ(黄大建)1,2; Kang YR(康玉茹)1; Wang AQ(王爱勤)1; Wang AQ(王爱勤)
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| 2013 | |
| Source Publication | Colloids and Surfaces B: Biointerfaces
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| ISSN | 0927-7765 |
| Volume | 106Pages:51-59 |
| Abstract | The novel granular semi-IPN hydrogels were in situ prepared in an aqueous solution by the free-radical grafting and crosslinking reactions among chitosan (CTS), acrylic acid (AA), gelatin (GE) and N,N′-methylene-bis-acrylamide. The FTIR spectra and elemental analysis confirmed that the AA monomers were grafted onto CTS backbone, and the GE macromolecular chains interpenetrated through the CTS-g-PAA network. The hydrogels are granular, which are composed of numerous micro-spheres according to the scanning electron microscope observations. The gel strength, adsorption, reuse and recovery properties of the hydrogels for Cu2+ ion were systematically investigated. The results indicate the hydrogel with 2 wt% GE has the highest adsorption capacity of 261.08 mg/g with the recovery ratio of 95.2%. And the incorporation of 10 wt% GE enhanced the storage modulus by 103.4% (ω = 100 rad/s) and 115.1% (ω = 0.1 rad/s), and the adsorption rate by 5.67%. Moreover, the adsorption capacity of the hydrogel is still as high as 153.9 mg/g, after five cycles of adsorption–desorption. It was found that the ion-exchange and complexation interactions between the functional groups (—COO− and —NH2) of the hydrogels and Cu2+ ion are the predominant adsorption mechanisms. |
| Keyword | Chitosan Gelatin Granular Semi-ipn Hydrogel Heavy Metal Adsorption |
| Subject Area | 功能复合材料 |
| DOI | 10.1016/j.colsurfb.2013.01.030 |
| Funding Organization | the National Natural Science Foundation of China (Nos. 51003112;21107116) |
| Indexed By | SCI |
| If | 4.287 |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4253 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | Wang AQ(王爱勤) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wang WB,Huang DJ,Kang YR,et al. One-step in situ fabrication of a granular semi-IPN hydrogel based on chitosan and gelatin for fast and efficient adsorption of Cu2+ ion[J]. Colloids and Surfaces B: Biointerfaces,2013,106:51-59. |
| APA | Wang WB,Huang DJ,Kang YR,Wang AQ,&王爱勤.(2013).One-step in situ fabrication of a granular semi-IPN hydrogel based on chitosan and gelatin for fast and efficient adsorption of Cu2+ ion.Colloids and Surfaces B: Biointerfaces,106,51-59. |
| MLA | Wang WB,et al."One-step in situ fabrication of a granular semi-IPN hydrogel based on chitosan and gelatin for fast and efficient adsorption of Cu2+ ion".Colloids and Surfaces B: Biointerfaces 106(2013):51-59. |
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| 1.pdf（1681KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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