Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics.

ABSTRACT: In the last decades, titania (or TiO₂) particles played a crucial role in the development of photo-catalysis and better environmentally-friendly energy-harvesting techniques. In this work, we engineer a new generation of TiO₂ particles rich in oxygen vacancies using a modified sol-gel synthesis. By design, these vacancy-rich particles efficiently absorb visible light to allow carefully-controlled light-induced conversion to the anatase or rutile crystalline phases. FTIR and micro-Raman spectroscopy reveal the formation of oxygen vacancies during conversion and explain this unique laser-assisted crystallization mechanism. We achieve low-energy laser-assisted crystallization in ambient environment using a modified filament 3D printer equipped with a low-power laser prin

SUBMITTER: Benavides-Guerrero JA 

PROVIDER: S-EPMC9474447 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature