Synthesis of Ag Nanoparticles via Green Chemistry Method and Their Enhancing Effects on Room Temperature Phosphorescence of Fluorescein

Chem. J. Chinese Universities

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Synthesis of Ag Nanoparticles via Green Chemistry Method and Their Enhancing Effects on Room Temperature Phosphorescence of Fluorescein

LI Yu-Qi¹, ZHU Ya-Xian¹, ZHANG Yong²*

1. College of Chemistry and Chemical Engineering,
2. State Key Lab of Marine Environmental Science of China, Environmental Science Research Center, Xiamen University, Xiamen 361005, China

Received:2007-10-18 Revised:1900-01-01 Online:2008-04-10 Published:2008-04-10
Contact: ZHANG Yong

Abstract

Abstract: Silver nanoparticles were synthesized via a “green chemistry method”, in which [Ag(NH₃)₂]⁺ was reduced by β-D-glucose in the presence of β-cyclodextrin(β-CD), and characterized by UV-Vis, HRTEM and FTIR. Enhanced room temperature phosphorescence(RTP) signal of fluorescein on the filter paper surface in the presence of silver nanoparticle was firstly observed. Furthermore, with the increment of Ag nanoparticles’ concentration, the RTP intensity of fluorescein was increased at first, and then decreased when the molar ratio of fluorescein to Ag nanoparticles reached 1∶2. The mechanism of the interaction between Ag nanoparticles and β-CD was proposed, and the enhancing effects of Ag nanoparticles on room temperature phosphorescence of fluorescein were discussed.

Key words: Ag nanoparticle, β-CD, Metal-enhanced RTP, Green chemistry

CLC Number:

O614

TrendMD:

LI Yu-Qi¹, ZHU Ya-Xian¹, ZHANG Yong²*. Synthesis of Ag Nanoparticles via Green Chemistry Method and Their Enhancing Effects on Room Temperature Phosphorescence of Fluorescein[J]. Chem. J. Chinese Universities, doi: .

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Synthesis of Ag Nanoparticles via Green Chemistry Method and Their Enhancing Effects on Room Temperature Phosphorescence of Fluorescein

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