Synthesis of Fe{sub 3}O{sub 4}/SiO{sub 2}/Ag nanoparticles and its application in surface-enhanced Raman scattering
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China)
To obtain a recyclable surface-enhanced Raman scattering (SERS) material, we developed a composite of Fe{sub 3}O{sub 4}/SiO{sub 2}/Ag with core/shell/particles structure. The designed particles were synthesized via an ultrasonic route. The Raman scattering signal of Fe{sub 3}O{sub 4} could be shielded by increasing the thickness of the SiO{sub 2} layer to 60 nm. Dye rhodamine B (RB) was chosen as probe molecule to test the SERS effect of the synthesized Fe{sub 3}O{sub 4}/SiO{sub 2}/Ag particles. On the synthesized Fe{sub 3}O{sub 4}/SiO{sub 2}/Ag particles, the characteristic Raman bands of RB could be observed when the RB solution was diluted to 5 ppm (1x10{sup -5} M). Furthermore, the synthesized particles could keep their efficiency till four cycles. -- Graphical Abstract: Fe{sub 3}O{sub 4}/SiO{sub 2}/Ag particles, a recyclable surface-enhanced Raman scattering (SERS) material, were designed and synthesized via a simple ultrasonic route. Display Omitted
- OSTI ID:
- 21494153
- Journal Information:
- Journal of Solid State Chemistry, Vol. 183, Issue 12; Other Information: DOI: 10.1016/j.jssc.2010.10.001; PII: S0022-4596(10)00455-X; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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