Citation: Wu-Yang Nie, Le Li, De-Liang Li, Xi Liu. A new preparation method of gold nanoparticles by intra-reduction of sodium gold(I) sulfite[J]. Chinese Chemical Letters, ;2014, 25(2): 380-382.
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In this study, well-dispersed gold nanoparticles were prepared by using intra-molecular reduction of sodium gold sulfite, without using additional reductants and chloride free. The technical parameters including transformation temperature, pH, and concentration were optimized by the single-factor method as 90 ℃, pH 1, and 0.01 mmol/L [Na3Au(SO3)2], respectively. The resultant colloidal transmission electron microscopy images (TEM) and UV-vis absorption spectrophotometer spectra were acquired to check their properties, and the results show this kind of colloidal gold is controlled to 6 nm in sizes and has good stability in solution.
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Keywords:
- Colloidal gold,
- Sodium gold(I) sulfite,
- Intra-reduction
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