Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 10, Issue 1, Pages 207-213Publisher
SPRINGER
DOI: 10.1007/s11051-007-9220-z
Keywords
bio-template; monodisperse nanoparticles; silver; squama coat of onion; synthesis method
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This paper describes a facile sy]nthetic method for preparing monodisperse silver nanoparticles by bio-template of the squama inner coat of onion. The method is able to make silver nanoparticles with average diameters in the range of 4.6-7.9 nm with narrow size distribution. The important factors in the synthesis of monodisperse silver nanoparticles were discussed. The nanoparticles were characterized by transmission electron microscope, Powder X-ray diffraction and UV-Vis spectroscopy. A possible formation mechanism was also proposed. Because of its simple apparatus, high yield, convenient operation and mild conditions, this synthetic method will have potential application in preparing nanoparticles.
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