Simple and environmentally friendly preparation and size control of silver nanoparticles using an inhomogeneous system with silver-containing glass powder |
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| Authors: | Yasutaka Mori Toshio Tagawa Masanori Fujita Toyohiko Kuno Satoshi Suzuki Takemi Matsui Masayuki Ishihara |
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| Institution: | (1) Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa Saitama, 359-8513, Japan;(2) Aeromedical Laboratory, Japan Air Self-Defense Force, 2-3 Inariyama, Sayama Saitama, 350-1324, Japan;(3) Faculty of System Design, Tokyo Metropolitan University, 6-6 Asahigaoka, Hino Tokyo, 191-0065, Japan;(4) Kankyo Science Co., Ltd, 16-8 Karahashi-Minamibiwa-cho, Minami-ku, Kyoto 601-8456, Japan; |
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| Abstract: | A simple, environmentally friendly method for preparing highly size-controlled spherical silver nanoparticles was developed
that involved heating a mixture of silver-containing glass powder and an aqueous solution of glucose. The stabilizing agent
for silver nanoparticles was found to be caramel, which was generated from glucose when preparing the nanoparticles. The particle
size was independent of the reaction time, but it increased proportionally with the square root of the glucose concentration
in the range 0.25–8.0 wt% (corresponding to particle sizes of 3.48 ± 1.83 to 20.0 ± 2.76 nm). Difference of the generation
mechanism of silver nanoparticles between this inhomogeneous system and a system in which Ag+ was homogeneously dispersed was discussed. |
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