Facile preparation of water dispersible polypyrrole nanotube-supported silver nanoparticles for hydrogen peroxide reduction and surface-enhanced Raman scattering

Yingjing Peng, Lihua Qiu, Congtao Pan, Cancan Wang, Songmin Shang, Feng Yan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

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 languageEnglish
Pages (from-to)399-405
Number of pages7
JournalElectrochimica Acta
Volume75
DOIs
Publication statusPublished - 30 Jul 2012

Keywords

  • Cation-exchange
  • H O 2 2
  • Polypyrrole nanotubes
  • SERS
  • Silver nanoparticle

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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