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ID 115711
Author
Li, Yanlin Xi'an Jiaotong University
Yang, Sen Xi'an Jiaotong University
Lu, Xuegang Xi'an Jiaotong University
Duan, Wenyuan Xi'an Jiaotong University
Content Type
Journal Article
Description
Fe3O4–Ag Janus composites were synthesized using a two-step solvothermal method. The optimal growth process was determined by investigating the relationship between the particle morphologies and reaction time. Magnetic and Raman spectroscopic measurements showed that the as-synthesized Janus composites have both good magnetic response and significant surface-enhanced Raman scattering (SERS) effects, as well as reproducibility. The calculated Raman enhancement factor reached an unprecedented magnitude of 109 compared with the values of other Fe3O4–Ag compounds. Furthermore, the SERS effect was exhibited even at a concentration of probe molecules as low as 10−13 M. This demonstrates that the as-synthesized Fe3O4–Ag Janus composite particles have promise for application as separable, highly sensitive SERS substrates.
Journal Title
RSC Advances
ISSN
20462069
Publisher
The Royal Society of Chemistry
Volume
9
Issue
6
Start Page
2877
End Page
2884
Published Date
2019-01-22
Rights
This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence(https://creativecommons.org/licenses/by-nc/3.0/).
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DOI (Published Version)
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language
eng
TextVersion
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departments
Science and Technology