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