New application of photocatalytic TiO2 nanoparticles on the improved surface-enhanced Raman scattering

Yu Chuan Liu, Chung Chin Yu, Cheng Cai Wang, Lain Chuen Juang

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report here the first simultaneous irradiation of UV light on samples in surface-enhanced Raman scattering (SERS) measurements. A roughen gold substrate with TiO2 nanoparticles was prepared by using electrochemical oxidation-reduction cycles (ORC) in 0.1 M HCl aqueous solution containing 1 mM anatase TiO2 nanoparticles. It is encouraging to find that the SERS spectrum, obtaining with the simultaneous irradiation of 4-W UV light on the sample, of polypyrrole (PPy) electrodeposited on the TiO2 nanoparticles-containing roughened gold substrate exhibits an 8-fold higher intensity compared to that without the contribution from the simultaneous irradiation of UV light.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalChemical Physics Letters
Volume420
Issue number1-3
DOIs
Publication statusPublished - Mar 10 2006
Externally publishedYes

Fingerprint

Ultraviolet radiation
Raman scattering
Irradiation
Raman spectra
Nanoparticles
Gold
nanoparticles
irradiation
gold
electrochemical oxidation
Electrochemical oxidation
polypyrroles
Substrates
anatase
aqueous solutions
cycles
polypyrrole
titanium dioxide
Oxidation-Reduction

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces
  • Condensed Matter Physics

Cite this

New application of photocatalytic TiO2 nanoparticles on the improved surface-enhanced Raman scattering. / Liu, Yu Chuan; Yu, Chung Chin; Wang, Cheng Cai; Juang, Lain Chuen.

In: Chemical Physics Letters, Vol. 420, No. 1-3, 10.03.2006, p. 245-249.

Research output: Contribution to journalArticle

Liu, Yu Chuan ; Yu, Chung Chin ; Wang, Cheng Cai ; Juang, Lain Chuen. / New application of photocatalytic TiO2 nanoparticles on the improved surface-enhanced Raman scattering. In: Chemical Physics Letters. 2006 ; Vol. 420, No. 1-3. pp. 245-249.
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