ZHANG Huai-bin, LI Huai-xiang, WANG Xiao-yan, LIU Wen-bo. Effects of Silver Nanoparticles on Spectroscopy Properties of Riboflavin Adsorbed on The Surface[J]. Chinese Journal of Luminescence, 2011,32(4): 393-397
ZHANG Huai-bin, LI Huai-xiang, WANG Xiao-yan, LIU Wen-bo. Effects of Silver Nanoparticles on Spectroscopy Properties of Riboflavin Adsorbed on The Surface[J]. Chinese Journal of Luminescence, 2011,32(4): 393-397 DOI: 10.3788/fgxb20113204.0393.
Effects of Silver Nanoparticles on Spectroscopy Properties of Riboflavin Adsorbed on The Surface
The silver nanoparticles have been prepared by oxidation and reduction method and their effects on the optical behaviors of riboflavin aqueous solution have been investigated. The absorption intensity of riboflavin was enhanced. After the silver nanoparticles added into the solution
the 372 nm peak was red-shifted and the 444 nm peak was blue-shifted. The fluorescence of riboflavin solution was quenched with the increase of silver nanoparticles concentration. The mechanism of the quenching of riboflavin aqueous solution has been discussed from the enhancement of non-radiative channel
reduction of local field near the surface of silver nano-particles
distribution reduction of riboflavin molecules in the first single excited stated and energy transfer
etc.
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