Nano-composite soda lime silicate glass prepared using silver ion exchange

作者：Varma Ranjana S; Kothari D C^*; Tewari R

来源：Journal of Non-Crystalline Solids, 2009, 355(22-23): 1246-1251.

DOI：10.1016/j.jnoncrysol.2009.05.001

• Ion exchange
• Nano-crystals
• Optical spectroscopy
• TEM/STEM
• Nano-clusters
• Nano-composites
• Nanoparticles
• Absorption
• Luminescence
• FTIR measurements
• Soda lime silica

Commercial soda lime silicate glasses have been subjected to ion exchange at different temperatures ranging from 320 to 500 degrees C in a molten mixture of AgNO(3) and NaNO(3) with molar ratio of 10:90, 02:98 and 50:50 for different time periods ranging from 40 to 180 min. Optical and structural properties of the ion exchanged glass are measured using UV-Vis-NIR absorption spectroscopy, Fourier transform infrared (FTIR) spectroscopy, fluorescence spectroscopy and transmission electron microscopy (TEM). Signature of silver nanoparticle formation is obtained from the UV-Vis-NIR spectra, which shows a peak at 425 nm due to surface plasmon resonance (SPR). Replacement of Na(+) ions by Ag(+) ions is inferred from FTIR spectra. Fluorescence spectra reveal the formation of Ag(0) atoms from Ag(+) ions at higher temperatures. TEM image shows the silver nanoparticles of average size 3.75 nm. At exchange temperature of 500 degrees C Ag nanoparticles are formed without post-exchange annealing treatment.

• 出版日期2009-7-15