CTAB Assisted Synthesis of Nickel Nanoparticles by Laser Ablationand its Characterizations

摘要

Nickel nanoparticles is synthesized by laser ablation of nickel disc in aqueous medium of cationic surfactant cetyltrimethylammonium bromide (CTAB) is studied. The focused output of first harmonic from nanosecond pulsed Nd: YAG laser operating at 35 mJ/pulse energy is used for the ablation of disc suspended in different concentration of CTAB in aqueous medium. Produced nanomaterial is characterized by using transmission electron microscopy (TEM), UV-visible absorption, Fourier transform infrared and X-ray diffraction (XRD) spectroscopic techniques. The magnetic properties are measured by vibrating sample magnetometer (VSM). This study shows that pulsed laser ablation in liquid media is a good method to synthesize some nanoparticles with special structures, which are difficult to produce by other methods.