论文部分内容阅读
制备出了具有纳米尺寸的纳米银,探讨了在电解质和聚乙烯吡咯烷酮(PVP)环境中纳米银的吸收光谱。实验发现:电解质对纳米银的吸收光谱均有不同程度的影响,而且对纳米银特征峰的影响是阴阳粒子共同作用的结果;Cl-对纳米银的影响比Br-、I-大;二价阳离子比一价阳离子对纳米银吸收光谱的影响要大的多;PVP会影响纳米银粒子的光谱性质。
Nanosilver with nanometer size was prepared, and the absorption spectra of nanosilver in the environment of electrolyte and polyvinylpyrrolidone (PVP) were discussed. It was found that the electrolyte affected the absorption spectra of nanosilver to varying degrees, and the effect on the characteristic peaks of nanosilver was the result of interaction of yin and yang particles. The effect of Cl- on the nanosilver was larger than that of Br- and I- Cations have a much greater effect on the absorption spectra of silver nanoparticles than monovalent cations; PVP can affect the spectral properties of the silver nanoparticles.