Abstract
Water dispersible polypyrrole nanotube/silver nanoparticle hybrids (PPyNT-COOAgNP) were synthesized via a cation-exchange method. The approach involves the surface functionalization of PPyNTs with carboxylic acid groups (COOH), and cation-exchange with silver ions (Ag+) and followed by the reduction of metal ions. The morphology and optical properties of the produced PPyNT-COOAgNP nanohybrids were characterized by transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectrometer, and UV-vis spectroscopy. The as-prepared PPyNT-COOAgNP nanohybrids exhibited well-defined response to the reduction of hydrogen peroxide, and as extremely suitable substrates for surface-enhanced Raman spectroscopy (SERS) with a high enhancement factor of 6.0 × 107, and enabling the detection of 10-12M Rhodamine 6G solution.
| Original language | English |
|---|---|
| Pages (from-to) | 399-405 |
| Number of pages | 7 |
| Journal | Electrochimica Acta |
| Volume | 75 |
| DOIs | |
| Publication status | Published - 30 Jul 2012 |
Keywords
- Cation-exchange
- H O 2 2
- Polypyrrole nanotubes
- SERS
- Silver nanoparticle
ASJC Scopus subject areas
- General Chemical Engineering
- Electrochemistry
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