Abstract
Herein, TiO2 nanotubes are synthesised from 3D-printed Ti6Al4V titanium alloy structures via an anodization process. Anodization is performed on both flat and open lattice 3D structures. The effect of anodization duration on the photocatalytic efficiency is investigated using flat samples, focusing on the degradation of methylene blue under ultraviolet (UV) and simulated sunlight. An optimal anodization time of 15 min is identified and subsequently applied to the 3D structures to evaluate the effect of shape. Further photocatalytic assessments are conducted on these complex 3D structures under dynamic conditions involving rotational movements, which demonstrate enhanced photocatalytic performance compared to static conditions. These findings highlight the effectiveness of combining 3D-printing technology with tailored anodization processes in enhancing the rotating photocatalytic properties of TiO2-based materials, with potential applications in environmental remediation and advanced technologies.