Sonoelectrochemical synthesis of chitosan/gold nanocomposites for application in removing toxic materials in mainstream smokes

Keng Liang Ou, Chung Chin Yu, Yu Chuan Liu, Kuang Hsuan Yang, Cheng Cai Wang, Qing Ye Chen

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this work, chitosan (Ch)-capped gold nanoparticles (NPs) were prepared in aqueous solutions by electrochemical methods. First, Ch-capped Au cations were prepared by dissolving Au substrates via electrochemical treatments of oxidation-reduction cycles. Then the Ch-capped Au cations were reduced via sonoelectrochemical reductions to synthesize Ch/Au nanocomposites (NCs). The particle size of prepared Au NPs with predominant (1 1 1) face on Ch is ca. 15 nm. Ch on the prepared Ch/Au NCs can easily react with acetaldehydes in mainstream smokes to form Schiff bases. Then catalysts of Au NPs can instantaneously decompose capped acetaldehydes and oxidize CO into CO 2 to protect people from poisoning in the mainstream smokes.

Original languageEnglish
Pages (from-to)2333-2337
Number of pages5
JournalMaterials Research Bulletin
Volume46
Issue number12
DOIs
Publication statusPublished - Dec 2011

Keywords

  • A. Composites
  • C. Photoelectron spectroscopy
  • D. Catalytic properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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