Sintesa dan Karakterisasi Koloid Nanopartikel Emas (Au) dengan Metode Laser Ablasi di dalam Medium Cair

Abstract

Researched manufacture of gold nanoparticle by laser ablation method in liquid medium (PLAL) has been. By using parameters such as laser energy, wavelength, time variations, the concentration of CTAB. With focuses on the condition of the laser beam towards the Au plat is incorporated into the liquid. The liquid used in this research is H2O + CTAB. The concentration of CTAB used here are 0,1 wt%, 0,01 wt%, and 0,001 wt%. H2O + CTAB was used here 3 ml. Plat Au entered into liquid is then irradiated with differentenergy and wavelength . Laser energy that is used in this research is divided into three regions (low, medium, and high). By doing radiation for 1 hour, 45 minutes, 30 minutes, and 15 minutes will produce pure gold nanoparticles. Based on reference, that with energy 19 mJ, concentration CTAB0,01 wt% on time irradiation at 1 hour is the best parameters in producing colloidal nanoparticle of gold. Effect of wavelength on the particle size was examined at 532 nm and 355 nm. Optimal wavelength laser ablation is 532 nm.