Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
Publication date: 18th December 2023
Hydrogen (H2) production through photocatalytic water splitting has gained significance as a clean and sustainable energy source. Common photocatalysts are used in a powder form, which complicates the scalability of the process and the recovery of the material after reaction. In this study, we report a novel approach to enhance H2 production efficiency by using a 3D-printed silicon carbide (SiC) photocatalyst modified with reduced graphene and titanium oxide by simple spray coating. In this way, an increased surface area and improved mass transport during the catalytic reaction are provided by the customized design of the 3D-printed SiC structure. Moreover, titanium oxide serves as a photocatalyst to enhance oxidation processes and the reduced graphene incorporation facilitates the electron transfer among the materials. Therefore, the goal of these materials' synergistic combination is to maximize the photocatalytic activity, stability and the overall reaction performance. Characterization techniques, including scanning electron microscopy and spectroscopic analyses, provide insights into the morphological and structural features of the device. In addition, experimental results on H2 generation rates under various conditions are presented. Our results suggest that this innovative photocatalyst design holds great promise to make progress in the field of renewable H2 production, as it does not only demonstrate improved efficiency but also offers scalability and cost-effectiveness.
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