State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
Carbohydr Polym. 2013 Jan 2;91(1):348-55. doi: 10.1016/j.carbpol.2012.08.073. Epub 2012 Aug 25.
A green, straightforward, microwave-assisted method of synthesizing silver nanoparticles in an aqueous medium was developed using bamboo hemicelluloses as stabilizer and glucose as reducer. The effects of irradiation time as well as initial concentrations of hemicelluloses, glucose, and AgNO(3) on the silver nanoparticle formation were studied. The silver nanoparticles were characterized by UV-vis spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results indicated the formation of spherical, nanometer-sized particles. The reaction parameters significantly affected the formation rate, size and distribution of the silver nanoparticles. The average particle size was 8.3-14.8 nm based on TEM analysis. XRD analysis revealed that the particles calcined at 300 °C were face-centered cubic. XPS characterization showed that silver Ag(0) coexisted with silver Ag(I). The synthesis process of silver nanoparticles was rapid and eco-friendly.
采用竹半纤维素作为稳定剂、葡萄糖作为还原剂，在水相介质中开发了一种绿色、直接、微波辅助的合成银纳米粒子的方法。研究了辐照时间以及半纤维素、葡萄糖和 AgNO 3 的初始浓度对银纳米粒子形成的影响。通过紫外-可见光谱、透射电子显微镜（TEM）、X 射线衍射（XRD）和 X 射线光电子能谱（XPS）对银纳米粒子进行了表征。结果表明形成了球形、纳米级颗粒。反应参数显著影响银纳米粒子的形成速率、尺寸和分布。基于 TEM 分析，平均粒径为 8.3-14.8nm。XRD 分析表明，在 300°C 下煅烧的颗粒为面心立方。XPS 特性表明，银 Ag(0)与银 Ag(I)共存。银纳米粒子的合成过程快速且环保。
