Atmospheric Pressure Plasma Synthesized Gold Nanoparticle/Carbon Nanotube Hybrids for Photo-thermal Conversion

Daye Sun, J.R. McLaughlan, Li Zhang, Brian Falzon, Davide Mariotti, Paul Maguire, Dan Sun*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)
37 Downloads (Pure)

Abstract

 In this work, a room temperature atmospheric pressure direct-current plasma has been deployed for the one-step synthesis of gold nanoparticle/carboxyl group functionalized carbon nanotube (AuNP/CNT-COOH) nanohybrids in aqueous solution for the first time. Uniformly distributed AuNPs are formed on the surface of CNT-COOH, without the use of reducing agents or surfactants. The size of the AuNP can be tuned by changing the gold salt precursor concertation. UV-Vis, ζ-potential and X-ray photoelectron spectroscopy suggest that carboxyl surface functional groups on CNTs served as nucleation and growth sites for AuNPs and the multiple potential reaction pathways induced by the plasma-chemistry have been elucidated in detail. The nanohybrids exhibit significantly enhanced Raman scattering and photothermal conversion efficiency, properties that are essential for potential multi-modal cancer treatment applications
Original languageEnglish
Pages (from-to)4577-4588
Number of pages12
JournalLangmuir
Volume35
Issue number13
Early online date06 Mar 2019
DOIs
Publication statusPublished - 02 Apr 2019

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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