One-step method to prepare core-shell magnetic nanocomposite encapsulating silver nanoparticles with superior catalytic and antibacterial activity

doi:10.1016/j.jcis.2021.09.053

	One-step method to prepare core-shell magnetic nanocomposite encapsulating silver nanoparticles with superior catalytic and antibacterial activity
	Zhang, Jianfeng 2,3; Cao, Ruya 2,3; Song, Wencheng 4; Liu, Lei 4; Li, Jiaxing 1,2,3
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2022-02-01
卷号	607
关键词	Magnetism Ag NPs Azo dyes Polydopamine Antibiosis
ISSN号	0021-9797
DOI	10.1016/j.jcis.2021.09.053
通讯作者	Li, Jiaxing(lijx@ipp.ac.cn)
英文摘要	A facile one-step method for synthesis of magnetic core-shell nanocomposite composed of h-Fe3O4 (hollow Fe3O4) core and stable PDA (polydopamine) shell with functional Ag NPs (silver nanoparticles) evenly distributed between them is developed. The h-Fe3O4@Ag/PDA nanocomposite showed excellent catalytic activity in the reaction for reducing azo dyes (methyl orange, methylene blue, and congo red), and the ratios of k values to the weight of h-Fe3O4@Ag/PDA were calculated to be 0.302, 0.0545, and 0.895 min(-1) mg(-1), respectively. Besides, the h-Fe3O4@Ag/PDA nanocomposite also exhibited good antibacterial activity in the experiment of culturing Bacillus subtilis, and the MIC (minimum inhibitory concentration) was as low as 12.5 mu g/mL. Because the Ag NPs will not be leached in the solution under the protection of the PDA shell, the catalytic and antibacterial activities of h-Fe3O4@Ag/PDA nanocomposite could maintain more than 90% after five cycles. Intriguingly, this simple synthetic method can be extended to fabricate different multifunctional nanocomposites such as the spherical SiO2@Ag/PDA and rod-like Fe2O3@Ag/PDA. Overall, the facile fabrication process, the superior catalytic and antibacterial activity, and the excellent stability, endow the h-Fe3O4@Ag/PDA to be a promising nanocomposite. (C) 2021 Elsevier Inc. All rights reserved.
资助项目	National Key Research and Development Project[2020YFC1 806602] ; National Science Foundation of China[21876178] ; Priority Academic Program Development of Jiangsu Higher Education Institutions
WOS关键词	GOLD NANOPARTICLES ; MICROSPHERES ; SILICA ; NANOCATALYST ; NANOSPHERES ; REDUCTION ; GRAPHENE ; GROWTH ; CONVERSION ; NANOSHEETS
WOS研究方向	Chemistry
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000703125500010
资助机构	National Key Research and Development Project ; National Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124810]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Jiaxing
作者单位	1.Soochow Univ, Collaborat Innovat Ctr Radiat Med Jiangsu Higher, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Photovolta & Energy Conservat Mat, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230026, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Hlth & Med Technol, Hefei Inst Phys Sci, Anhui Prov Key Lab Med Phys & Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jianfeng,Cao, Ruya,Song, Wencheng,et al. One-step method to prepare core-shell magnetic nanocomposite encapsulating silver nanoparticles with superior catalytic and antibacterial activity[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,607.
APA	Zhang, Jianfeng,Cao, Ruya,Song, Wencheng,Liu, Lei,&Li, Jiaxing.(2022).One-step method to prepare core-shell magnetic nanocomposite encapsulating silver nanoparticles with superior catalytic and antibacterial activity.JOURNAL OF COLLOID AND INTERFACE SCIENCE,607.
MLA	Zhang, Jianfeng,et al."One-step method to prepare core-shell magnetic nanocomposite encapsulating silver nanoparticles with superior catalytic and antibacterial activity".JOURNAL OF COLLOID AND INTERFACE SCIENCE 607(2022).