The synthesis of gold nanoparticles was investigated with non-ionic surfactants such as polysorbate 80, brij 97 and KAuCl4 in water. The products of gold nanoparticle were well dispersed in water and investigated by UV-vis spectra and TEM. The reaction time for the synthesis of gold nanoparticles was investigated by monitoring the change of color and the change of the peak of the UV-vis spectra in the absence of ultrasonic irradiation and in the presence of ultrasonic irradiation. Gold nanoparticles reacted with 4-aminothiophenol in water and then, diethylether was added, and fullerene[C60] in toluene which was stirred for 24 h. The fullerene[C60]-gold nanoparticles were characterized by UV-vis and MALD-TOF-MS spectra.

Keywords: Fullerene[C60], Gold nanoparticle, Non-ionic surfactant, UV-vis spectra, TEM.