Preparation of Nanosized Gold Particles by Microwave Irradiation and Kinetics Study for Reduction of 4-Nitroaniline under Various Conditions

  • Kim, Jae Jin (Department of Chemistry, Sahmyook University) ;
  • Ko, Weon Bae (Department of Chemistry, Sahmyook University)
  • Received : 2015.09.15
  • Accepted : 2015.10.14
  • Published : 2015.12.31


Nanosized gold particles were synthesized by microwave irradiation in a mixture composed of potassium tetrachloroaurate(III) n-hydrate, sodium citrate dihydrate and Tween 20. The synthesized gold particles were characterized by UV-vis spectrophotometer, scanning electron microscopy, and X-ray diffraction techniques. Using UV-vis spectroscopy, it was confirmed that gold nanoparticles act as a catalyst in the reduction of 4-nitroaniline with sodium borohydride to form 1,4-diaminobenzene. Additionally, we studied the kinetics of this reductive reaction in the presence of these gold nanoparticles under various conditions.


Supported by : Sahmyook University


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