Synthesis and characterization of silver nanoparticles via microemulsion method using cationic surfactant (CTAB): Investigation of effective parameters on the size of prepared nanoparticles

The silver nanoparticles were synthesized by the reduction of AgNO(3) with N(2)H(5)OH in the water-in-oil microemulsion system of water/cetyl-trimethyl-amonium bromide (CTAB), n-butanol/ isooctane. The reaction progress was monitored by UV-Vis spectroscopy and the effect of different parameters such as type of the oil phase and water to CTAB molar ratio (w) on the size of nanoparticles was followed by transmission electron microscopy (TEM). Synthesized nanoparticles were stable for about two months without any precipitation.

Keywords:

Silver nanoparticles , microemulsion , cationic surfactant , CTAB