Highly Efficient Removal of Silver-Containing Nanoparticles in Waters by Aged Iron Oxide Magnetic Particles
文献类型：期刊论文
| 作者 | Zhou, Xiao-xia; Li, Ying-jie; Liu, Jing-fu |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2017-10-11 |
| 卷号 | 5期号:6页码:5468-5476 |
| 关键词 | Aged Iron Oxide Magnetic Particles Adsorption Silver-containing Nanoparticles Removal Waters |
| 英文摘要 | Methods for the removal of silver nanoparticles (AgNPs) and their transformation products, silver-containing nanoparticles (AgCNPs), are important, because of their potential risks to the general population and the environment. In this study, aged iron oxide magnetic particles (IOMPs) were synthesized by a simple solvothermal reaction and used for the removal of AgCNPs. The prepared IOMPs exhibit a high adsorption capacity toward AgCNPs in aqueous medium. Kinetic studies indicated that the adsorption of AgCNPs is a pseudo-second-order process. The experimental data for the adsorption of AgCNPs follow the Langmuir isotherm model, and their maximum adsorption capacities were 19.9-62.8 mg/g at pH 6.2 and 298 K. The sorption mean free energy calculated by the Dubinin Radushkevich isotherm was 4.09-5.17 kJ/mol, indicating the occurrence of physisorption, which was mainly due to the electrostatic interactions. The IOMP adsorbents maintained high removal efficiencies after four cycles of adsorption-desorption, suggesting good reusability of the developed IOMPs. Moreover, good removal efficiencies (63.3%-99.9%) and recoveries (67.1%-99.9%) were obtained from the real samples spiked with AgCNPs at levels of 10 pg/L, showing that the aged IOMPs could be used as efficient and low-cost adsorbents for the removal and recovery of AgCNPs from real waters. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39328]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhou, Xiao-xia,Li, Ying-jie,Liu, Jing-fu. Highly Efficient Removal of Silver-Containing Nanoparticles in Waters by Aged Iron Oxide Magnetic Particles[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(6):5468-5476. |
| APA | Zhou, Xiao-xia,Li, Ying-jie,&Liu, Jing-fu.(2017).Highly Efficient Removal of Silver-Containing Nanoparticles in Waters by Aged Iron Oxide Magnetic Particles.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(6),5468-5476. |
| MLA | Zhou, Xiao-xia,et al."Highly Efficient Removal of Silver-Containing Nanoparticles in Waters by Aged Iron Oxide Magnetic Particles".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.6(2017):5468-5476. |
入库方式： OAI收割
来源：生态环境研究中心
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