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Spectral-Luminescence Properties of Water Dispersions of CdS and Ag Nanoparticles Stabilized with Na sub(2) SiO sub(3)
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Spectral-Luminescence Properties of Water Dispersions of CdS and Ag Nanoparticles Stabilized with Na sub(2) SiO sub(3)
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Journal Article
Spectral-Luminescence Properties of Water Dispersions of CdS and Ag Nanoparticles Stabilized with Na sub(2) SiO sub(3)
2016
Overview
It was shown, that using of sodium metasilicate (Na sub(2) SiO sub(3)) as stabilizing agent for CdS quantum dots or Ag nanoparticles in water leads to the formation of stable colloids of CdS/SiO sub(3) super(2-) and Ag/SiO sub(3) super(2-) particles. These colloids are active in the visible range of the spectrum. According to TEM and UV-visible spectroscopy data, an average size of the particles in colloids was ~ 5 nm for CdS and 2-10 nm for Ag. Ag/SiO sub(3) super(2-) water colloids showed an absorption band with a maximum at 380-410 nm. This band belonged to surface plasmon resonance. CdS/SiO sub(3) super(2-) water dispersions were characterized by luminescence at the region of 500-800 nm. The luminescence intensity increased after addition of Ag+ into the colloids of CdS/SiO sub(3) super(2-).
Subject
ISBN
3038357294, 9783038357292
