Synthesis and spectroscopic studies of stable aqueous dispersion of silver nanoparticles
Synthesis and spectroscopic studies of stable aqueous dispersion of silver nanoparticles
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DOI：
10.1016/j.saa.2011.05.007
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发表时间：
2011-09-01
影响因子：
4.4
通讯作者：
Al-Otaibi, Maha M.
中科院分区：
文献类型：
--
作者：
El-Shishtawy, Reda M.;Asiri, Abdullah M.;Al-Otaibi, Maha M.
在水/胶束体系中，以十六烷基三甲基溴化铵（CTAB）为封端剂（稳定剂），葡萄糖为还原剂，合成了稳定的银纳米粒子（AgNPs）水分散液。在不同条件下监测AgNP的等离子体带的演变，所述条件例如（a）氢氧化钠浓度、（B）葡萄糖浓度、（c）硝酸银（Cl）浓度、CTAB浓度和（e）反应时间。采用紫外-可见光谱、透射电子显微镜、荧光光谱和红外光谱对AgNPs进行了表征。结果揭示了一种简单可行的策略，用于获得具有良好控制的形状和直径小于30 nm的尺寸的银纳米颗粒的稳定的水分散体。(C)2011 Elsevier B. V.保留所有权利。
A facile approach for the synthesis of stable aqueous dispersion of silver nanoparticles (AgNPs) using glucose as the reducing agent in water/micelles system, in which cetyltrimethylammonium bromide (CTAB) was used as capping agent (stabilizer) is described. The evolution of plasmon band of AgNPs was monitored under different conditions such as (a) concentration of sodium hydroxide, (b) concentration of glucose, (c) concentration of silver nitrate (Cl) concentration of CTAB, and (e) reaction time. AgNPs were characterized by UV-visible spectroscopy, transmission electron microscopy (TEM), fluorescence spectroscopy and FT-IR spectroscopy. The results revealed an easy and viable strategy for obtaining stable aqueous dispersion of AgNPs with well controlled shape and size below 30 nm in diameter. (C) 2011 Elsevier B.V. All rights reserved.