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首页> 外文期刊>Materials Letters >Efficient one pot synthesis of chitosan-induced gold nanoparticles by microwave irradiation
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Efficient one pot synthesis of chitosan-induced gold nanoparticles by microwave irradiation

机译：微波辐射一锅合成壳聚糖诱导金纳米粒子

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摘要

An efficient and rapid method for the preparation of gold nanoparticles (AuNPs) within a few minutes has been developed by direct microwave irradiation of HAuCl_4 and chitosan mixed solution in one pot. Herein, chitosan molecules acted as both the reducing and stabilizing agent for the preparation of AuNPs. The obtained AuNPs have different shapes, such as the spherical nanoparticles, triangular nanoplates and nanorods, which were characterized by ultraviolet-visible (UV-Vis) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and fourier transform infrared spectroscopy (FTIR). Additionally, the results showed that microwave power could affect the required time for preparing the AuNPs arising from the distinction of heating rate, and long irradiation time was favorable for complete reduction of HAuCl_4 when a low microwave power was applied.
机译：通过在一锅中直接用微波辐射HAuCl_4和壳聚糖混合溶液，已经开发了一种在几分钟内制备金纳米颗粒（AuNPs）的有效，快速的方法。在本文中，壳聚糖分子既充当还原剂，也充当稳定剂，用于制备AuNPs。获得的AuNPs具有不同的形状，例如球形纳米颗粒，三角形纳米板和纳米棒，其特征在于紫外可见（UV-Vis）光谱，透射电子显微镜（TEM），X射线衍射（XRD），X射线光电子能谱（XPS）和傅里叶变换红外光谱（FTIR）。此外，结果表明，微波功率会因加热速率的不同而影响制备AuNPs所需的时间，而低微波功率下较长的辐照时间有利于HAuCl_4的完全还原。

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