Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 31, Pages 16354-16360Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta02949j
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We report on a simple and green route toward monometallic (Au or Ag) and alloyed bimetallic AuAg nanoparticles using citric acid-derived carbon nanodots (C-dots) as the reducing and stabilizing agent. Simple variation in the initial C-dot : metal ratio yields a smoothly tunable surface plasmon resonance and the resulting nanomaterials show excellent catalytic activity for 4-nitrophenol reduction which is fully preserved following 5 months of storage. The Au@C-dot catalyst further demonstrated intrinsic peroxidase activity.
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