Fabrication of platinum nanoparticles by fiber laser ablation in water

Publish Year: 1399
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

OGPC03_080

تاریخ نمایه سازی: 12 آبان 1400

Abstract:

Laser ablation in liquid (LAL) has attracted much attention of researchers over the past decades and is considering one of the fastest, cleanest, and promising pathways to produce nanomaterials in as much as it can offer operative solutions to several challenges in the field of nanoscience or nanotechnology. Platinum (Pt) nanoparticles were synthesized by laser ablation in liquid (LAL) technique in deionized water. Platinum colloidal solutions were prepared by using a nanosecond pulsed fiber laser with a fluence of ۳۸.۲ J/cm۲ and a wavelength of ۱۰۶۴ nm, above the ablation threshold. The optical properties of the colloidal platinum nanoparticles were investigated by UV-vis absorption spectroscopy. The mean size, size distributions, shape, and elemental composition were examined by X-ray Diffraction (XRD), Dynamic light scattering (DLS), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). According to the XRD results, the mean crystalline size, crystal structure, and grain size of platinum nanoparticles were calculated. The particles formed in the water were stable, homogeneously spherical, and relatively monodispersed.

Keywords:

Laser ablation in liquid (LAL) , fiber laser , platinum nanoparticles.

Authors

Mahsa Abdollahi

MSc student, Dipartment of physics, Bu Ali Sina university, Hamedan

Babak Jaleh

Full profesor, Dipartment of physics, Bu Ali Sina university, Hamedan

Aida Moradi

MSc student, Dipartment of physics, Bu Ali Sina university, Hamedan

Wafaa Arnaouty

PhD student, Dipartment of physics, Bu Ali Sina university, Hamedan