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Size-dependent surface-enhanced Raman scattering of Sodium Benzoate on silver nanoparticles
Faculty
Science
Year:
2005
Type of Publication:
Article
Pages:
187-192
Authors:
Badr, Y, Mahmoud, MA
DOI:
10.1016/j.molstruc.2005.04.012
Journal:
JOURNAL OF MOLECULAR STRUCTURE ELSEVIER SCIENCE BV
Volume:
749
Research Area:
Chemistry
ISSN
ISI:000230635100027
Keywords :
Ag nanoparticles, SERS
Abstract:
The absorption spectrum of silver nanoparticles (Ag NPs) with different size and the transmission electron microscopy (TEM) was recorded. Surface-enhanced Raman scattering (SERS) spectra of Sodium Benzoate (SB) adsorbed on Ag NPs with different particle size were studied. The carboxylic group bands were enhanced as the particle size decreases due to the chemisorption of SB on the Ag NPs through it in which the carboxyl group was perpendicular to the surface and the benzene ring parallel to the surface; the SB bands were enhanced as the coverage density of Ag NPs increased. (c) 2005 Elsevier B.V. All rights reserved.
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