利用阳离子吡啶衍生物制备银纳米颗粒及光催化性能研究

Preparation and Photocatalytic Property of Silver Nanoparticles Using Cationic Pyridine Derivative

摘要：通过二乙烯三胺的还原反应与1-十六烷基溴化吡啶的调控．在室温下化学还原制备均匀单分散的稳定银纳米颗粒。得到的银颗粒尺寸分布在60-90纳米之间。形成银纳米颗粒的反应过程表现出明显的燕山变化，由无色到苍黄色，最终变化到椋黄色。制备的银纳米颗粒对于刚果红与罗丹明B表现出良好的光催化性能。

Through reducing action of diethylene triamine and the regulatory role of 1-hexadecylpyridinium bromide, u- niform, mono-dispersed and stabilized silver nanoparticles were obtained by chemical reduction method in room temper- ature. The size of the obtained silver particles is about 60-90 nm. The reaction process of the formation of silver nanoparticle has a distinct color change, varying from colorless to pale yellow and finally brownish yellow. The as-pre- pared silver nanoparticles have showed a relatively good photocatalytic property on Congo red and Rhodamine B.