Pollutant degradation behaviors in a heterogeneous Fenton system through Fe/S-doped aerogel
文献类型：期刊论文
| 作者 | Wang, Xuechun; Zhuang, Yuan; Zhang, Jia; Song, Laizhou; Shi, Baoyou
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020-04-20 |
| 卷号 | 714页码:1-9 |
| 关键词 | Fenton In-situ pyrolysis Organic pollutant Carbon aerogel Alginate |
| ISSN号 | 0048-9697 |
| 英文摘要 | To prepare a heterogeneous Fenton catalytic material with high pollutant degradation efficiency, Fe/alginate acid hydrogel was used as a template to obtain a Fe/S-doped aerogel (GFe2) and a Fe/O aerogel (GFe3). GFe2 and GFe3 exhibit different iron component crystal patterns; from our results, we deduced that S-doping improves the electron transportation in the Fenton reaction. GFe2 also exhibits a better spherical structure and a higher specific area than GFe3 due to the support of the FeS nanospheres. To further increase structural advantage, polyvinyl alcohol (PVA) was added to alginate hydrogel during in-situ pyrolysis, which further converts GFe2 into a more porous structure (PGFe). Experiments show that the organic removal efficiency of the samples are ordered as GFe3 < GFe2 < PGFe, which acts as additional evidence for the importance of S doping and the structural support that PVA offers which produces more active sites and faster electron transportation. PGFe shows a high reusability after 5 runs of repetitive use in tetracycline (TC) and perfluorooctanoic acid (PFOA) degradation. The removal rate of PFOA increased from 15.4% to 21.6% using PGFe: though not as significant as its effects on TC. The C-7, C-8, F-23, and O-24 atoms of PFOA are found easier to be attacked by hydroxyl radicals. Having used drinking and black odorous water to further evaluate the practical properties and industrial potentials of the aerogel, PGFe also shows a significant effect in degrading a variety of pollutants, both organic and heavy metal. This clearly demonstrates the promising potentials of Fe/S-doped carbon aerogel. (C) 2020 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45344]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Xuechun,Zhuang, Yuan,Zhang, Jia,et al. Pollutant degradation behaviors in a heterogeneous Fenton system through Fe/S-doped aerogel[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,714:1-9. |
| APA | Wang, Xuechun,Zhuang, Yuan,Zhang, Jia,Song, Laizhou,&Shi, Baoyou.(2020).Pollutant degradation behaviors in a heterogeneous Fenton system through Fe/S-doped aerogel.SCIENCE OF THE TOTAL ENVIRONMENT,714,1-9. |
| MLA | Wang, Xuechun,et al."Pollutant degradation behaviors in a heterogeneous Fenton system through Fe/S-doped aerogel".SCIENCE OF THE TOTAL ENVIRONMENT 714(2020):1-9. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。