Simultaneous Multifunctional Sorption of PFOS and Cr(VI) on Activated Carbon Prepared by One-Step Microwave Activation
文献类型：期刊论文
| 作者 | Zhu, Zhibao; Zhou, Qin ; Zhang, Meiyi; He, Guangzhi; Pan, Gang; Zhao, Yuan
|
| 刊名 | WATER AIR AND SOIL POLLUTION
 |
| 出版日期 | 2015-07 |
| 卷号 | 226期号:8页码:- |
| 关键词 | Activated carbon Cr(VI) PFOS Sorption mechanism XANES |
| 英文摘要 | Multifunctional sorbents, activated carbons (AC), were prepared by one-step microwave activation utilizing peanut shells and sunflower seed husks. The influence of the original particle size of raw materials on the yield and specific surface area of AC was studied, which reached 33.5 % and 1133.27 m(2)/g, respectively. The repetitive and competitive uptakes of perfluorooctane sulfonate (PFOS) and chromium were applied to investigate the sorption properties of AC. The sorption mechanisms were demonstrated using sulfur Kedge X-ray absorption near edge structure analysis (XANES). In the repetitive experiment, AC made from peanut shells (AC(P05)) still retained 70 % removal efficiency of PFOS after the fourth sorption because sorbed PFOS might form a new organic phase that supplied effective sites for the hydrophobic partition of PFOS. However, the removal efficiency of Cr(VI) decreased dramatically from 60 to 11 % after the fourth uptake because electrostatic attraction was its only removal pathway. In the binary solutes system, AC(P05) possessed perfect sorption performance for both PFOS and Cr(VI), which were 885 and 192 mg/g, respectively. In the multivariate solutes system, the XANES spectra indicated that the thiol functional group existed in the resulting AC and a metal chelate was formed between thiol and Zn2+/Cu2+. Hence, the presence of Zn2+/Cu2+ further promoted the removal of PFOS and Cr(VI) through the electrostatic attraction between the anions and positive metal chelate. |
| 研究领域[WOS] | Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources |
| WOS记录号 | WOS:000359369600008 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32715]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | Zhu, Zhibao,Zhou, Qin,Zhang, Meiyi,et al. Simultaneous Multifunctional Sorption of PFOS and Cr(VI) on Activated Carbon Prepared by One-Step Microwave Activation[J]. WATER AIR AND SOIL POLLUTION,2015,226(8):-. |
| APA | Zhu, Zhibao,Zhou, Qin,Zhang, Meiyi,He, Guangzhi,Pan, Gang,&Zhao, Yuan.(2015).Simultaneous Multifunctional Sorption of PFOS and Cr(VI) on Activated Carbon Prepared by One-Step Microwave Activation.WATER AIR AND SOIL POLLUTION,226(8),-. |
| MLA | Zhu, Zhibao,et al."Simultaneous Multifunctional Sorption of PFOS and Cr(VI) on Activated Carbon Prepared by One-Step Microwave Activation".WATER AIR AND SOIL POLLUTION 226.8(2015):-. |
入库方式： OAI收割
来源：生态环境研究中心
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