Gold modified cadmium sulfide aerogels

Simerjeet K. Gill, Preston Brown, Louisa J. Hope-Weeks

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Monolithic aerogels composed of cadmium sulfide nanoparticles partially modified with metallic gold (CdS-Au) are reported. The semiconductor-metal nanoparticles are synthesized using an inverse micelle media of Bis-(2-ethylhexyl)sulfosuccinate sodium salt (AOT) in heptane, followed by capping with 4-fluorothiophenol and precipitation with triethylamine. The nanoparticles are then dispersed in acetone and gel formation is achieved using nanoparticle condensation strategy. The resultant CdS-Au aerogel materials are mesoporous, with an interconnected network of semiconductor-metal nanoparticles. A detailed microstructure analysis of the semiconductor-metal aerogels via transmission electron microscopy indicates that the final gold concentration significantly impacts the semiconductor-metal aerogel morphology and porosity.

Original languageEnglish
Pages (from-to)68-75
Number of pages8
JournalJournal of Sol-Gel Science and Technology
Volume57
Issue number1
DOIs
StatePublished - Jan 2011

Keywords

  • CdS-Au
  • Chalcogenide aerogel
  • Sol-gel

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