Spectral Behavior of Nano-Ag Sol Under the Influence of Electrolytes

Abstract

Abstract: The interaction between electrolytes and nano-Ag particles were investigated by using UV-Vis spectroscopic method.Tetramethylammonium ion, which can be hardly adsorbed on nano-Ag because of its bulky methyl group, was used as the cation to study the variation of surface plasma resonance band of nano-Ag induced by various anions.No significant change of the band for nano-Ag could be observed when Cl^-and Br^-ions were introduced into nano-Ag sol.Based on the above results, different metal salts with Cl^-as anion were used for investigating the spectra of nano-Ag.The nano-Ag sol exhibits a different spectral behavior when various metaLIons were introduced.

Key words: UV-Vis spectrum, Nano-Ag sol particle, Anion, Cation

CLC Number:

O614

TrendMD:

ZHENG Ai-Guo, WANG Du-Jin, XU Yi-Zhuang, WU Jin-Guang, XU Duan-Fu . Spectral Behavior of Nano-Ag Sol Under the Influence of Electrolytes[J]. Chem. J. Chinese Universities, 2003, 24(11): 1953.

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Spectral Behavior of Nano-Ag Sol Under the Influence of Electrolytes

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