1. Synthesis of Platinum Nanoparticles by Gamma Co-60 Ray Irradiation Method Using Chitosan as Stabilizer.
- Author
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Nguyen, Thi Kim Lan, Nguyen, Ngoc Duy, Dang, Van Phu, Phan, Dinh Tuan, Tran, Thai Hoa, and Nguyen, Quoc Hien
- Subjects
PLATINUM nanoparticles ,PLATINUM ,GAMMA rays ,CHITOSAN ,NANOPARTICLE synthesis ,IRRADIATION ,ULTRAVIOLET-visible spectroscopy - Abstract
Platinum nanoparticles were synthesized using the gamma-ray irradiation as a reducing factor and chitosan as a stabilizer. The prepared platinum nanoparticles were characterized using ultraviolet-visible spectroscopy (UV-Vis), transmission electron microscopy (TEM), and Fourier-transform infrared spectroscopy (FT-IR). The saturated conversion dose to reduce the Pt
4+ to Pt0 was found to be about 14 kGy for initial Pt4+ concentration of 1 mM. The size of the platinum nanoparticles (1.4–1.6 nm) did almost not change with the increase of chitosan concentration from 0.5 to 2.0%. Thus, gamma Co-60 ray irradiation method is favorable for synthesizing PtNPs with the small sizes. [ABSTRACT FROM AUTHOR]- Published
- 2019
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