Ms. Marina Karsakova Profile

Marina Karsakova

at ITMO Univ

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Proceedings Article | 24 May 2022 Poster + Paper

Creation of Au/TiO2 hybrid nanoparticles via laser ablation in liquid

Ekaterina Ponkratova, Marina Karsakova, Dmitry Zuev

Proceedings Volume 12131, 121310R (2022) https://doi.org/10.1117/12.2621262

KEYWORDS: Nanoparticles, Gold, Laser ablation, Particles, Titanium, Scanning electron microscopy, Liquids, Catalysis, Titanium dioxide, Spherical lenses

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At the present time, hybrid nanostructures attract significant attention among researchers because such materials allow combining advantages of different materials. For instance, the ability of metal nanoparticles to localize electromagnetic energy can be combined with low losses in the visible range of high-index nanoparticles. In this work, we demonstrate the method of creation of hybrid Au/TiO₂spherical nanoparticles using nanosecond pulsed laser ablation in deionized water. A titanium foil with a sprayed gold film of various thicknesses was used as an initial sample. The effect of the thickness of the gold film on the morphology of the obtained hybrid structures was demonstrated via SEM, and the elemental composition of the created nanoparticles was studied using EDX. The size distribution of the obtained nanoparticles was studied using DLS. We believe the obtained results create the basis for the development of affordable and efficient photocatalysts operating in the visible wavelength range.

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