Size-controlled preparation of silver nanoparticles by a modified polyol method

Tao Zhao, Rong Sun, Shuhui Yu, Zhijun Zhang, Li Min Zhou, Haitao Huang, Ruxu Du

Research output: Journal article publicationJournal articleAcademic researchpeer-review

124 Citations (Scopus)

Abstract

In this work, size-controlled silver nanoparticles were prepared with liquid phase chemical method in the ethylene glycol/polyvinylpyrrolidone media. Crystal structure, size, thermal properties and surface chemistry state of the silver nanoparticles were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR), thermal analysis (TA) and X-ray photoelectron spectroscopy (XPS). The particle size can be conveniently adjusted to 80nm, 50nm, 30nm and 10nm by controlling the experimental parameters such as the ratio of PVP to AgNO3, and the amount of ammonia added as complexing agent. The as-obtained silver nanoparticles can be dispersed in water, ethanol and other polar solvents, which has attractive applications in electrical and biological fields.
Original languageEnglish
Pages (from-to)197-202
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume366
Issue number1-3
DOIs
Publication statusPublished - 1 Jan 2010

Keywords

  • Ag nanoparticles
  • Polyol method
  • Size-controlled preparation

ASJC Scopus subject areas

  • Colloid and Surface Chemistry

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