Preparation of silver nanoparticles in inorganic clay suspensions

Haitao Huang, Yan Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

83 Citations (Scopus)

Abstract

We have successfully developed a simple method for preparing silver nanoparticles via photoreduction of AgNO3in layered laponite suspensions without any addition of reduction agent or heat treatment. The properties of silver nanoparticles were studied as a function of the UV irradiation time. A bimodal size distribution and relatively large silver nanoparticles were obtained when irradiated under UV for 3 h. Further irradiation disintegrated the silver nanoparticles into smaller size with a single mode distribution until a relatively stable size and size distribution were achieved. The results from optical absorption spectra of silver nanoparticles agree well with the detailed microstructure studies performed by transmission electron microscopy (TEM). The synthesized laponite suspensions containing silver nanoparticles are stable up to several months and have potential applications as antimicrobial ointments.
Original languageEnglish
Pages (from-to)2948-2953
Number of pages6
JournalComposites Science and Technology
Volume68
Issue number14
DOIs
Publication statusPublished - 1 Nov 2008

Keywords

  • A. Nano composites
  • A. Nano particles
  • D. Rheology
  • D. Transmission electron microscopy (TEM)

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering(all)

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