科研之友
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摘要
In this research, carboxymethyl chitosan and solar light were used to prepare gold nanoparticles. After being irradiated by solar light, a characteristic peak of gold nanoparticle can be found in UV-visible absorption spectrum of the aqueous solution of carboxymethyl chitosan and HAuCl4. Most particles prepared by this method were around 20 nm in size. It was proved that the resultants were polycrystalline nanoparticles rather than amorphous nanocomposites by X-ray diffraction analyse and selected area electron diffraction experiment. The gold nanoparticles prepared by this method were stable even in high salinity solution. It was conjectured that the carboxyl group of carboxymethyl chitosan may be the reason of reducibility.
- 出版日期2016-10
- 单位贵州中医药大学
