Journal
ANALYTICAL METHODS
Volume 5, Issue 8, Pages 1991-1995Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ay26222g
Keywords
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Funding
- National Natural Science Foundation of China [21175159]
- International Cooperation Project of Ministry of Science and Technology [2010DFA32680]
- Fundamental Research Funds for the Central Universities [CDJXS11232242]
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Spherical gold nanoparticles (GNPs), with an average diameter of 13 nm, were synthesized and their catalytic activity was measured by a spectroscopic method. The GNPs were synthesized by a microwave-assisted heating method under reflux, using trisodium citrate as the reducing agent. UV spectra and transmission electron microscopic (TEM) analysis were used to characterize the GNPs. The as-prepared GNP solutions were then successfully used as the catalyst in the borohydride reduction of nitrophenols. The reaction could be monitored by the time-dependent UV spectra. The reduction of nitrophenols followed a pseudo-first-order kinetic model and the apparent rate of different isomeric nitrophenols followed the order: m-nitrophenol > p-nitrophenol > o-nitrophenol.
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