| One-step fabrication in aqueous solution of a granular alginate-based hydrogel for fast and efficient removal of heavy metal ions | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WB(王文波) ; Kang YR(康玉茹); Wang AQ(王爱勤); Wang AQ(王爱勤)
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| 2013 | |
| Source Publication | Journal of Polymer Research
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| ISSN | 1022-9760 |
| Volume | 20Issue:3Pages:101 (1-10) |
| Abstract | Granular alginate-based hydrogels were prepared in situ in an aqueous solution via grafting and crosslinking reactions among sodium alginate (SA), acrylic acid (AA), polyvinylpyrrolidone (PVP), and gelatin (GE). Fourier transform infrared spectra, elemental analysis, and scanning electrical microscopy revealed that AA monomers were grafted onto an SA backbone, and that PVP and GE were present in the hydrogel network as linear interpenetrating components. The grafting polymerization and crosslinking reaction between only SA and AA yielded a bulk gel, but the introduction of PVP and GE into the reaction mixture led to the formation of granular products. Electrostatic and hydrogen-bonding interactions among SA, PAA, PVP, and GE were the main driving forces for the formation of granular products. The adsorption isotherms and adsorption kinetics were evaluated for the adsorption of model heavy-metal ions on one of the hydrogels. The results indicated that the hydrogel has satisfactory adsorption capacities (3.028 mmol/g, Ni2+; 3.146 mmol/g, Cu2+; 2.911 mmol/g, Zn2+; 2.862 mmol/g, Cd2+), adsorption rates, and recovery capacities for the target metal ions. In addition, competitive adsorption results suggested that the hydrogel has a stronger affinity for Cu2+ ion than for the other ions. |
| Keyword | Sodium Alginate Granular Hydrogel In Situ Formation Adsorption Heavy Metals |
| Subject Area | 功能复合材料 |
| DOI | 10.1007/s10965-013-0101-0 |
| Funding Organization | the National Natural Science Foundation of China (nos. 51003112;21107116));the Science and Technology Support Project of Jiangsu Provincial Sci. & Tech. Department (no. BY2010012) |
| Indexed By | SCI |
| If | 1.897 |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| compositor | 第一作者单位 |
| WOS Research Area | Polymer Science |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4252 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | Wang AQ(王爱勤) |
| Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Wang WB,Kang YR,Wang AQ,et al. One-step fabrication in aqueous solution of a granular alginate-based hydrogel for fast and efficient removal of heavy metal ions[J]. Journal of Polymer Research,2013,20(3):101 (1-10). |
| APA | Wang WB,Kang YR,Wang AQ,&王爱勤.(2013).One-step fabrication in aqueous solution of a granular alginate-based hydrogel for fast and efficient removal of heavy metal ions.Journal of Polymer Research,20(3),101 (1-10). |
| MLA | Wang WB,et al."One-step fabrication in aqueous solution of a granular alginate-based hydrogel for fast and efficient removal of heavy metal ions".Journal of Polymer Research 20.3(2013):101 (1-10). |
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| File Name/Size | DocType | Version | Access | License | ||
| W0201302213083484997（766KB） | 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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