脉冲激光轰击法连续制备纳米铜研究

Study on nano-copper prepared by pulsed laser ablation

采用脉冲激光轰击法连续制备了纳米铜及表面活性剂原位修饰的油溶性纳米铜 ,用UV Vis研究了不同表面活性剂不同浓度对纳米铜 /乙醇溶胶的紫外 可见光谱的影响 ,从而确定各表面活性剂的最佳浓度 ,用TEM研究了不同表面活性剂对纳米铜溶胶分散稳定性的影响 ,确定了最佳表面活性剂为平平加O ,傅立叶红外光谱发现纳米铜 /乙醇溶胶中乙醇分子基团振动波长受纳米铜颗粒的影响而出现红移现象 ,分散性实验表明

Nano-copper particles and surface-modified nano-copper particles are obtained by pulsed laser ablation. We choose the best density of the additive by the ultraviolet visible spectroscopy(UV-vis),and choose the best additive by the transmission electron microscopy(TEM). It's found through FT-IR that the vibration of ethanol molecule groups in the sol is affected by the nano-copper particles. The result of dispersion experiments shows that slovapon surface-modify makes the nano-copper particles easily disperse in oil.