One-step fabrication in aqueous solution of a granular alginate-based hydrogel for fast and efficient removal of heavy metal ions
文献类型：期刊论文
| 作者 | Wang WB(王文波) ; Kang YR(康玉茹); Wang AQ(王爱勤); Wang AQ(王爱勤)
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| 刊名 | Journal of Polymer Research
 |
| 出版日期 | 2013 |
| 卷号 | 20期号:3页码:101 (1-10) |
| 关键词 | Sodium alginate Granular hydrogel In situ formation Adsorption Heavy metals |
| ISSN号 | 1022-9760 |
| 通讯作者 | 王爱勤 |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 功能复合材料 |
| 类目[WOS] | Polymer Science |
| 研究领域[WOS] | Polymer Science |
| 关键词[WOS] | SWELLING BEHAVIOR ; ACID) HYDROGELS ; ADSORPTION ; COMPOSITES ; POLY(N-VINYLPYRROLIDONE) ; POLYACRYLAMIDE ; NANOCOMPOSITE ; EQUILIBRIUM ; PERFORMANCE ; KINETICS |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (nos. 51003112;21107116));the Science and Technology Support Project of Jiangsu Provincial Sci. & Tech. Department (no. BY2010012) |
| 语种 | 英语 |
| WOS记录号 | WOS:000318283500014 |
| 公开日期 | 2013-12-02 |
| 源URL | [http://210.77.64.217/handle/362003/4252]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 通讯作者 | Wang AQ(王爱勤) |
| 作者单位 | Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China |
| 推荐引用方式 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). |
入库方式： OAI收割
来源：兰州化学物理研究所
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