The combination of 3D printing and surface functionalization is currently a hot topic for the fabrication of complex components with unique physical-chemical properties. For instance, printed scaffolds can be used as catalyst support for water treatment, solar energy conversion or gas sensors. In this framework, we explored the functionalization of translucent glass scaffolds obtained from LCD glass waste with a photocatalytic coating. Compared to conventional supports, they can offer a larger illuminated surface area and control of the mass flow through designed channels, improving photocatalytic efficiency. The TiO2 coating was synthesized through a sol-gel route, starting from a titanium alkoxide precursor in an alcoholic solvent. Thin films were deposited on glass substrates by dip-coating followed by thermal annealing to induce crystallization. Preliminary tests were performed on flat commercial LCD glasses to optimize the process parameters such as withdrawal speed, aging of the solution, and annealing treatment. The physiochemical 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 organic compounds under UV light.