Effects of Mn doping on surface enhanced Raman scattering properties of TiO₂ nanoparticles.

Authors :: Xue X
Ji W
Mao Z
Li Z
Ruan W
Zhao B
Lombardi JR
Source :: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2012 Sep; Vol. 95, pp. 213-7. Date of Electronic Publication: 2012 May 07.
Publication Year :: 2012
Abstract: TiO(2) and Mn-doped TiO(2) (1%, 3% and 5%) nanoparticles (NPs) were synthesized by a sol-hydrothermal method for surface-enhanced Raman spectroscopy study. When using the 4-mercaptobenzoic acid (4-MBA) as the probing molecule, optimum SERS signals were observed on the Mn-TiO(2) (3%) samples. On the 3% Mn doped TiO(2) substrate, 4-MBA molecules exhibit a higher SERS intensity by a factor of six as compared with the native enhancement of 4-MBA adsorbed on pure TiO(2) NPs. The possible mechanism for the phenomena is also discussed. This study opens up a new dimension for the family of SERS substrates.<br /> (Copyright © 2012 Elsevier B.V. All rights reserved.)

Subjects :: Absorption
Adsorption
Benzoates chemistry
Ions
Nanoparticles ultrastructure
Photoelectron Spectroscopy
Spectrophotometry, Ultraviolet
Sulfhydryl Compounds chemistry
Surface Properties
X-Ray Diffraction
Manganese chemistry
Nanoparticles chemistry
Spectrum Analysis, Raman
Titanium chemistry

Language :: English
ISSN :: 1873-3557
Volume :: 95
Database :: MEDLINE
Journal :: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Publication Type :: Academic Journal
Accession number :: 22634412
Full Text :: https://doi.org/10.1016/j.saa.2012.04.101

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