Analysis of Titanium Nanoparticles Created by Laser Irradiation under Liquid Environments

Abstract

The results of studies of the formation of various titanium-based nanoparticles by laser ablation of a titanium rod in liquid environments comprised of water, ethanol, 2-propanol, and n-hexane are reported. The effect of fluence on nanoparticle characteristics was studied by ablation with a 532 nm Nd:YAG operating at 10 Hz, showing that mean particle size and the size distribution increase with increasing laser intensity. The solvent plays a crucial role in the nature of the nanoparticles, as solvent components are incorporated into the nanoparticles during formation. Titanium nanoparticles formed in oxygen-rich solvents incorporate oxygen, while those formed in a carbon-rich environment are found to contain carbon. The nanoparticles created in their respective liquid environments are very stable, maintain their character over time, and remain in solution for months after creation.

Near infrared induced optical heating in laser ablated Bi quantum dots

“…Several previous workers have developed NPs of silver, gold, bismuth, etc. through this method and have studied the effects of laser power variation on the size of nanoparticles [21][22][23].…”

Room temperature ferromagnetism in liquid-phase pulsed laser ablation synthesized nanoparticles of nonmagnetic oxides

“…Golightly and Castleman reported that oxygen vacancy defect concentration is higher in larger sized LA-PLA produced TiO 2-d NPs and for a single spherical NP, oxygen vacancy concentration increases from the surface to the centre. 26 Larger volumes in bigger sized TiO 2-d NPs correspond for higher density of oxygen vacancies, and each vacancy in volume corresponds to a larger number of neighboring Ti atoms as compared to those on the surface, which results for higher degree of ferromagnetism into larger sized TiO 2-d NPs. Additionally, oxygen vacancies inside the volume may get substituted by Ti þ3 ions with one unpaired 3d electrons that induce local magnetic moments on neighboring Ti atoms.…”

First-principle calculations of the structural and elastic properties of titanium nanowires

“…Additionally, its corrosion resistance and biocompatibility with living tissues have made titanium essential for medical implants. Nanostructured materials based on titanium exhibit desirable mechanical properties [2], as well as high reactivity to oxygen [3,4]. Furthermore, the physical properties of titanium nanowires strongly depend on their atomic configuration.…”