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在非水乙二醇反胶束内合成银纳米粒子,并通过溶剂化动力学和旋转弛豫测量对纳米粒子对反胶束聚集体的影响进行比较研究。

Synthesis of silver nanoparticle inside the nonaqueous ethylene glycol reverse micelle and a comparative study to show the effect of the nanoparticle on the reverse micellar aggregates through solvation dynamics and rotational relaxation measurements.

机构信息

Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India.

出版信息

J Phys Chem B. 2010 Jun 10;114(22):7557-64. doi: 10.1021/jp1008048.

DOI:10.1021/jp1008048
PMID:20469879
Abstract

In this work, we have reported the application of less familiar ethylene glycol-AOT reverse micelle for the synthesis of silver nanoparticle using glucose as mild reducing agent and isooctane as the continuous media. We have also studied the pure ethylene glycol-AOT reverse micelle and the perturbed reverse micelle (containing silver nanoparticle in its womb) through solvation dynamics measurement using steady-state and time-resolved fluorescence spectroscopy. Finally, we compared both of the results to get the valuable information about the perturbed reverse micellar system containing silver nanoparticle. Through the work, we found that in the pure reverse micellar system, with increasing ethylene glycol loading, solvation time was decreasing and anisotropy value became slower. In the perturbed reverse micellar system (containing silver nanoparticle) having the same environmental state, that is, at the same ethylene glycol content, solvent and rotational relaxation became slower and faster, respectively.

摘要

在这项工作中,我们报告了使用不太熟悉的乙二醇-AOT 反胶束合成银纳米粒子的应用,其中葡萄糖作为温和的还原剂,异辛烷作为连续相。我们还通过稳态和时间分辨荧光光谱测量了纯乙二醇-AOT 反胶束和受扰反胶束(内部含有银纳米粒子)的溶剂化动力学。最后,我们比较了这两种结果,以获得有关含有银纳米粒子的受扰反胶束体系的有价值的信息。通过这项工作,我们发现,在纯反胶束体系中,随着乙二醇负载量的增加,溶剂化时间减少,各向异性值变慢。在具有相同环境状态的受扰反胶束体系(含有银纳米粒子)中,即在相同的乙二醇含量下,溶剂和旋转松弛分别变慢和变快。

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