Preparation and characterization of size controllable spherical silver nanoparticles  

作　　者：杨爱玲 李顺嫔 王玉金 包西昌 阳仁强 

机构地区：[1]Department of Physics,Ocean University of China [2]Qingdao Institute of Bioenergy & Bioprocess Technology,Chinese Academy of Sciences

出　　处：《Optoelectronics Letters》2014年第3期164-167,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.41172110 and 61107090);Shandong Provincial Natural Science Foundation(No.ZR2011BZ007)

摘　　要：By adjusting pH values of reactant system,the mass ratio of stabilizer/water and aging temperature,size controllable spherical silver nanoparticles(NPs) were synthesized.The properties of silver NPs are characterized by X-ray diffraction(XRD),transmission electron microscope(TEM) and ultraviolet visible(UV-VIS) absorption spectra.Within the pH values of 7.0—11.0,the aging temperature of 80 °C is better to improve silver NPs in shape to nearly sphere,concentrate size distribution and reduce aggregation than the aging temperature of 25 °C.The shape and dispersibility of silver NPs are the best when the pH of the reactant system is within 7.0—8.0.With pH of 7.5,aging at 80 °C,and stabilizer/water mass ratio of 1%,the spherical silver NPs with sizes of 50—70 nm were synthesized.The results are promising to be used to synthesize core/shell NPs when silver NPs are as core.By adjusting pH values of reactant system, the mass ratio of stabilizer/water and aging temperature, size controllable spherical silver nanoparticles （NPs） were synthesized. The properties of silver NPs are characterized by X-ray diffrac- tion （XRD）, transmission electron microscope （TEM） and ultraviolet visible （UV-VIS） absorption spectra. Within the pH values of 7.0-11.0, the aging temperature of 80℃ is better to improve silver NPs in shape to nearly sphere, con- centrate size distribution and reduce aggregation than the aging temperature of 25 ℃. The shape and dispersibility of silver NPs are the best when the pH of the reactant system is within 7.0---8.0. With pH of 7.5, aging at 80 ℃, and sta- bilizer/water mass ratio of 1%, the spherical silver NPs with sizes of 50---70 nm were synthesized. The results are promising to be used to synthesize core/shell NPs when silver NPs are as core.

关 键 词：银纳米粒子 球形 可控 尺寸 银纳米颗粒 透射电子显微镜 表征 制备 

分 类 号：TB383.1[一般工业技术—材料科学与工程]