Adsorption characteristics of Cr (III) onto starch-graft-poly(acrylic acid)/organo-modifed zeolite 4A composite: A novel path to the adsorption mechanisms
文献类型：期刊论文
| 作者 | Ma, K; Zhao, L; Jiang, Z; Huang, YY; Sun, XP |
| 刊名 | POLYMER COMPOSITES
 |
| 出版日期 | 2018 |
| 卷号 | 39期号:4页码:1223-1233 |
| 关键词 | Ray-absorption Spectroscopy Heavy-metal Ions Aqueous-solutions Magnetic-properties Molecular-dynamics Waste-water Superabsorbent Hydrogel Fine-structure Removal Chromium |
| ISSN号 | 0272-8397 |
| DOI | 10.1002/pc.24056 |
| 文献子类 | 期刊论文 |
| 英文摘要 | u Superabsorbent polymer are extensively synthesized in our daily life, and have become important scavengers of metal ions dissolved in aquatic environment. Herein, Herein, an in-depth study was performed to examine the morphology and adsorption properties of the starch-graft-poly(acrylic acid)/organo-modifed zeolite 4A composite by coupling SEM, XRF, and ICP-MS, and to completely characterize the Cr (III) coordination sphere within the complex by combining DFT calculations and XAS. The results showed that the adsorption capacity of the synthesized composite could reach to a very large value of 651.42 mgg(-1) with initial Cr3+ concentration ascending to 50 mmolL(-1), while the removal rate decreased continuously. By virtue of DFT calculations and XAS, it was found that the adsorbed chromium was coordinated by four carboxyl O in quasi-equator plane and two water O in axial direction to form a quasi-octahedral geometry. The Cr-O/C distance of our compound were very close to those reported values of Cr-adsorbed organic componds and polynuclear chromium carboxylate compounds. Finally, the combination of DFT calculations and XAS was demonstrated to be a powerful method to explore the mechanisms of metal ion adsorption onto synthesized composite. POLYM. COMPOS., 39:1223-1233, 2018. (c) 2016 Society of Plastics Engineers |
| 语种 | 英语 |
| WOS记录号 | WOS:000429582000023 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/28924]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Ma, K 2.Zhao, L 3.Jiang, Z 4.Huang, YY 5.Sun, XP |
| 推荐引用方式 GB/T 7714 | Ma, K,Zhao, L,Jiang, Z,et al. Adsorption characteristics of Cr (III) onto starch-graft-poly(acrylic acid)/organo-modifed zeolite 4A composite: A novel path to the adsorption mechanisms[J]. POLYMER COMPOSITES,2018,39(4):1223-1233. |
| APA | Ma, K,Zhao, L,Jiang, Z,Huang, YY,&Sun, XP.(2018).Adsorption characteristics of Cr (III) onto starch-graft-poly(acrylic acid)/organo-modifed zeolite 4A composite: A novel path to the adsorption mechanisms.POLYMER COMPOSITES,39(4),1223-1233. |
| MLA | Ma, K,et al."Adsorption characteristics of Cr (III) onto starch-graft-poly(acrylic acid)/organo-modifed zeolite 4A composite: A novel path to the adsorption mechanisms".POLYMER COMPOSITES 39.4(2018):1223-1233. |
入库方式： OAI收割
来源：上海应用物理研究所
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