论文部分内容阅读
通过液相化学还原法制备了形貌不同的纳米银分散液,分析了纳米银的平均粒度和紫外可见光吸收曲线,同时对分散液粒子的扫描形貌进行了观察。结果表明,随着Ag+浓度的增加,纳米银颗粒的平均粒度大致呈现逐渐增加的趋势,并且紫外可见光的最大吸收波长也呈现增大的趋势。纳米银颗粒最初呈现球形,有三角形的纳米银颗粒出现。随着B液提前加入时间的延长,纳米银颗粒尺寸不断增加,三角形纳米银颗粒的数量也随之增加。
The nanosilver dispersions with different morphologies were prepared by the liquid chemical reduction method. The average particle size and the UV-visible absorption curve of the nanosilver were analyzed. The scanning morphologies of the dispersions were also observed. The results showed that with the increase of Ag + concentration, the average particle size of nano-silver particles showed a gradual increase trend, and the maximum absorption wavelength of UV-visible light also showed an increasing trend. Nano-silver particles initially spherical, triangular nano-silver particles appear. With the prolongation of the time of adding liquid B in advance, the size of nano-silver particles is increasing, and the number of triangular nano-silver particles also increases.