In situ redox-oxidation polymerization for magnetic core-shell nanostructure with polydopamine-encapsulated-Au hybrid shell
Qunling Fang
1
,
Jianfeng Zhang
1
,
Linfeng Bai
2
,
Jinyu Duan
1
,
Huajian Xu
1
,
Ken Leung
3
,
Shouhu Xuan
2
1
Publication type: Journal Article
Publication date: 2019-04-01
scimago Q1
wos Q1
SJR: 3.078
CiteScore: 24.6
Impact factor: 11.3
ISSN: 03043894, 18733336
PubMed ID:
30594714
Environmental Chemistry
Environmental Engineering
Health, Toxicology and Mutagenesis
Pollution
Waste Management and Disposal
Abstract
This work reports a facile one-step method for the fabricating Fe3O4@Au/polydopamine sandwich-like core-shell nanostructure, in which the Au/polydopamine (Au/PDA) hybrid shell is obtained via an in situ redox-oxidation polymerization between the HAuCl4 and dopamine. The content of Au nanocrystals, shell thickness, and particle sizes are tunable by varying the experimental parameters. Intriguingly, this general method can be applied for different functional nanostructures such as the β-FeOOH@Au/PDA, SiO2@Au/PDA, and CNT@Au/PDA nanocomposites. A possible formation mechanism is proposed and it is found that the surface interaction plays a key role in determining the final nanostructure. The as-prepared Fe3O4@Au/PDA exhibited eminent catalytic activity on the reduction of 4-nitrophenol. Since the external PDA shell prevents the Au nanocrystals from leaching during the reduction, the cycling activity has been maintained as high as 95% after seven times of catalytic reaction.
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Metrics
66
Total citations:
66
Citations from 2025:
5
(7.58%)
The most citing journal
Citations in journal:
5
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GOST
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Fang Q. et al. In situ redox-oxidation polymerization for magnetic core-shell nanostructure with polydopamine-encapsulated-Au hybrid shell // Journal of Hazardous Materials. 2019. Vol. 367. pp. 15-25.
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Fang Q., Zhang J., Bai L., Duan J., Xu H., Leung K., Xuan S. In situ redox-oxidation polymerization for magnetic core-shell nanostructure with polydopamine-encapsulated-Au hybrid shell // Journal of Hazardous Materials. 2019. Vol. 367. pp. 15-25.
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TY - JOUR
DO - 10.1016/j.jhazmat.2018.12.059
UR - https://doi.org/10.1016/j.jhazmat.2018.12.059
TI - In situ redox-oxidation polymerization for magnetic core-shell nanostructure with polydopamine-encapsulated-Au hybrid shell
T2 - Journal of Hazardous Materials
AU - Fang, Qunling
AU - Zhang, Jianfeng
AU - Bai, Linfeng
AU - Duan, Jinyu
AU - Xu, Huajian
AU - Leung, Ken
AU - Xuan, Shouhu
PY - 2019
DA - 2019/04/01
PB - Elsevier
SP - 15-25
VL - 367
PMID - 30594714
SN - 0304-3894
SN - 1873-3336
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2019_Fang,
author = {Qunling Fang and Jianfeng Zhang and Linfeng Bai and Jinyu Duan and Huajian Xu and Ken Leung and Shouhu Xuan},
title = {In situ redox-oxidation polymerization for magnetic core-shell nanostructure with polydopamine-encapsulated-Au hybrid shell},
journal = {Journal of Hazardous Materials},
year = {2019},
volume = {367},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/j.jhazmat.2018.12.059},
pages = {15--25},
doi = {10.1016/j.jhazmat.2018.12.059}
}