Work

Functionalization of LCD glass for the manufacturing of advanced 3D-printed translucent photocatalytic scaffolds

Year: 2024

Type: article

Abstract: In this paper, we discuss the functionalization of translucent glass scaffolds obtained from LCD glass waste with a photocatalytic coating. Scaffolds were in the form of four-layer lattices and gyroids, depending on the printing technology, such as direct ink writing and masked stereolithography. The printed structures were dip-coated with a sol-gel TiO 2 precursor solution followed by thermal annealing to induce crystallization. Preliminary tests were performed on LCD slides to optimize the process parameters such as withdrawal speed and annealing temperature. The physicochemical properties of the coatings were characterized by X-ray diffraction analysis, UV–VIS spectroscopy, ellipsometry, and SEM. The photocatalytic efficiency was evaluated by monitoring the degradation of methylene blue under UV light. Photodegradation kinetics were studied following a pseudo-first-order reaction. We found that the coated scaffolds show comparable photodegradation rate constant, despite the different topologies.

Source: Open Ceramics

DOI: 10.1016/j.oceram.2024.100731

Authors: Elena Colusso, Hamada Elsayed, Paulina Ożóg, Jozef Kraxner, Dusan Galusek, Enrico Bernardo

Institutions: University of Padua, Trencianska Univerzita Alexandra Dubceka V Trencine

Language: English

Topic: TiO2 Photocatalysis and Solar Cells

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $2,000