Poly(catechol) modified Fe3O4 magnetic nanocomposites with continuous high Fenton activity for organic degradation at neutral pH
文献类型：期刊论文
| 作者 | Hua, Yani2,3,4; Wang, Chuan2; Wang, Sha4 ; Xiao, Juan1
|
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2021-07-02 |
| 页码 | 13 |
| 关键词 | Poly(catechol) Fe3O4 MNPs Fenton Catalyst Recycle |
| ISSN号 | 0944-1344 |
| DOI | 10.1007/s11356-021-15088-7 |
| 通讯作者 | Wang, Chuan(wangchuan@gzhu.edu.cn) |
| 英文摘要 | Fe3O4 magnetic nanoparticles (MNPs) have been widely used as a recyclable catalyst in Fenton reaction for organic degradation. However, the pristine MNPs suffer from the drawbacks of iron leaching in acidic conditions as well as the decreasing catalytic activity of organic degradation at a pH higher than 3.0. To solve the problems, Fe3O4 MNPs were modified by poly(catechol) (Fe3O4/PCC MNPs) using a facile chemical co-precipitation method. The poly(catechol) modification improved both the dispersity and the surface negative charges of Fe3O4/PCC MNPs, which are beneficial to the catalytic activity of MNPs for organic degradation. Moreover, the poly(catechol) modification enhanced the efficiency of Fe(II) regeneration during Fenton reaction due to the acceleration of Fe(III) reduction by the phenolic/quinonoid redox pair. As a result, the Fenton reaction with Fe3O4/PCC MNPs could efficiently degrade organic molecules, exampled by methylene blue (MB), in an expanded pH range between 3.0 and 10.0. In addition, Fe3O4/PCC MNPs could be reused up to 8 cycles for the MB degradation with negligible iron leaching of lower than 1.5 mg L-1. This study demonstrated Fe3O4/PCC MNPs are a promising heterogeneous Fenton catalysts for organic degradation. |
| 资助项目 | Natural Science Foundation of China[51678554] ; Natural Science Foundation of China[51978181] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000669179700008 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/13783]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Wang, Chuan |
| 作者单位 | 1.Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China 2.Guangzhou Univ, Inst Environm Res Greater Bay, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou 510006, Peoples R China 3.Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Xian 710049, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hua, Yani,Wang, Chuan,Wang, Sha,et al. Poly(catechol) modified Fe3O4 magnetic nanocomposites with continuous high Fenton activity for organic degradation at neutral pH[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021:13. |
| APA | Hua, Yani,Wang, Chuan,Wang, Sha,&Xiao, Juan.(2021).Poly(catechol) modified Fe3O4 magnetic nanocomposites with continuous high Fenton activity for organic degradation at neutral pH.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,13. |
| MLA | Hua, Yani,et al."Poly(catechol) modified Fe3O4 magnetic nanocomposites with continuous high Fenton activity for organic degradation at neutral pH".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021):13. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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