Magnetically separable h-Fe3O4@Au/polydopamine nanosphere with a hollow interior: A versatile candidate for nanocatalysis and metal ion adsorption
文献类型：期刊论文
| 作者 | Xu, Kezhu2; Wu, Jin3; Fang, Qunling2; Bai, Linfeng1; Duan, Jinyu2; Li, Jiaxing3 ; Xu, Huajian2; Hui, Ailing2; Hao, Lingyun4; Xuan, Shouhu1
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2020-10-15 |
| 卷号 | 398 |
| ISSN号 | 1385-8947 |
| 关键词 | Pollution treatment U(VI) ions Organic pollutants Magnetic separation Catalysis |
| DOI | 10.1016/j.cej.2020.125571 |
| 通讯作者 | Fang, Qunling(fql.good@hfut.edu.cn) ; Xuan, Shouhu(xuansh@ustc.edu.cn) |
| 英文摘要 | The organic pollutants and heavy metal ions are critical harmful substances in waste water because they destroy the ecological systems and lead diseases to animals and human beings. Unfortunately, the simultaneously remove of them in one system is still a challenge due to their different treating mechanism. Herein, a novel magnetic h-Fe3O4@Au/Polydopamine (Au/PDA) hybrid hollow nanosphere which can both absorb the potentially toxic U(VI) ions and catalyze the reduction of the 4-nitrophenol is reported. By using a simple in situ redox-oxidizing polymerization method, the h-Fe3O4 hollow nanosphere is well encapsulated by the Au/PDA hybrid shell to form the dual-functional magnetic hollow nanocomposites. Owing to the hollow interior, uniform and functional PDA coating, and high active Au nanocrystals, the final h-Fe3O4@Au/PDA hollow nanosphere possesses high potential in nanocatalysis, heavy metal ions adsorption, and drug delivery. Because of the PDA protection, the h-Fe3O4@Au/PDA nanosphere can even keep 90% activity after 7 cycling catalytic reactions on reduction of 4-nitrophenol. Similarly, the h-Fe3O4@Au/PDA exhibits a good adsorption effect for U(VI) in nuclear waste and its adsorption capability reaches to 82.9 mg.g(-1) by 6 successive adsorption-desorption experiments. Due to the facile magnetic separation, the h-Fe3O4@Au/PDA nanosphere can be easily collected by applying an external magnetic field. In summary, such a multifunctional recyclable h-Fe3O4@Au/PDA nanosphere with green and facile synthesis, easy manipulation, efficient adsorption performance and good catalytic activity possesses broad application potential in treatment of coexisting toxic water pollution. |
| WOS关键词 | SIMULTANEOUS REMOVAL ; EFFICIENT REMOVAL ; ORGANIC-DYES ; U(VI) ; PERFORMANCE ; FABRICATION ; NANOCOMPOSITES ; NANOPARTICLES ; INTEGRATION ; REDUCTION |
| 资助项目 | National Natural Science Foundation of China[11822209] ; Fundamental Research Funds for the Central Universities[PA2020GDKC0005] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000561589200001 |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/70654]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Fang, Qunling; Xuan, Shouhu |
| 作者单位 | 1.Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China 2.Hefei Univ Technol, Sch Food & Biol Engn, Key Lab Metab & Regulat Major Dis, Anhui Higher Educ Inst, Hefei 230009, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China 4.Jinling Inst Technol, Sch Mat Engn, Nanjing 211169, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Kezhu,Wu, Jin,Fang, Qunling,et al. Magnetically separable h-Fe3O4@Au/polydopamine nanosphere with a hollow interior: A versatile candidate for nanocatalysis and metal ion adsorption[J]. CHEMICAL ENGINEERING JOURNAL,2020,398. |
| APA | Xu, Kezhu.,Wu, Jin.,Fang, Qunling.,Bai, Linfeng.,Duan, Jinyu.,...&Xuan, Shouhu.(2020).Magnetically separable h-Fe3O4@Au/polydopamine nanosphere with a hollow interior: A versatile candidate for nanocatalysis and metal ion adsorption.CHEMICAL ENGINEERING JOURNAL,398. |
| MLA | Xu, Kezhu,et al."Magnetically separable h-Fe3O4@Au/polydopamine nanosphere with a hollow interior: A versatile candidate for nanocatalysis and metal ion adsorption".CHEMICAL ENGINEERING JOURNAL 398(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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