journal article·2025-08Open access

Rotating photocatalytic activity of TiO2 nanotubes grown on 3D-printed titanium alloy structures

Mathieu Grandcolas, Anna Lind, Carlos Grande

Abstract

• 3D structures were printed using titanium alloy Ti6Al4V. • TiO 2 nanotubes were grown on their surface by anodization. • Photocatalytic activity was tested both in static and rotating modes. • Enhanced activity was observed when rotating. Herein, TiO 2 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 TiO 2 -based materials, with potential applications in environmental remediation and advanced technologies.
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Research context

OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Bone Tissue Engineering Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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