Bringing Catalysis with Gold Nanoparticles in Green Solvents to Graduate Level Students

• Vikram Singh Raghuwanshi ^[1] ; Robert Wendt ^[1] ; Maeve O'Neill ; Miguel Ochmann ; Tirtha Som ; Robert Fenger ; Marie Mohrmann ^[1] ; Armin Hoell ; Klaus Rademann ^[1]
  1. [1] Humboldt University of Berlin

     Humboldt University of Berlin

     Berlin, Stadt, Alemania

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 94, Nº 4, 2017, págs. 510-514
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • We demonstrate here a novel laboratory experiment for the synthesis of gold nanoparticles (AuNPs) by using a low energy gold-sputtering method together with a modern, green, and biofriendly deep eutectic solvent (DES). The strategy is straightforward, economical, ecofriendly, rapid, and clean. It yields uniform AuNPs of 5 nm in diameter with high reproducibility. Moreover, catalytic applications of AuNPs in DES are shown by studying the conversion of p-nitrophenol to p-aminophenol. Systematic in situ UV–vis spectra are recorded during the catalytic reaction. While the experimental procedures are simple, our laboratory experiments can be applied in a variety of settings depending upon how detailed the instructor requires the depth of the analyses. The laboratory experiments described herein were successfully conducted and evaluated by students with a bachelor degree.