Journal
NANOSCALE
Volume 5, Issue 13, Pages 5887-5895Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr01273e
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Funding
- National Basic Research Program of China [2011CB933700]
- Major national scientific instrument and equipment development project [2011YQ 0301241001]
- Key Projects of National Science Foundation of China [21271136]
- Important Project of Anhui Provincial Education Department [KJ2010ZD09]
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Ag-coated sea-urchin-like Fe3O4@C core-shell particles can be synthesized by a facile one-step solvothermal method, followed by deposition of high-density Ag nanoparticles onto the carbon surface through an in situ growth process, respectively. The as-synthesized Ag-coated Fe3O4@C particles can be used as a surface-enhanced Raman scattering (SERS) substrate holding reproducible properties under an external magnetic force. The magnetic function of the particles allows concentrating the composite particles into small spatial regions, which can be exploited to decrease the amount of material per analysis while improving its SERS detection limit. In contrast to the traditional SERS substrates, the present Fe3O4@C@Ag particles hold the advantages of enrichment of organic pollutants for improving SERS detection limit and recycled utilization.
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