Issue 4, 2025, Issue in Progress

Efficient photocatalytic reactors via 3D printing: SLA fabrication and TiO2 hybrid materials

Abstract

Additive Manufacturing (AM) was evaluated as a promising technology for constructing photocatalytic reactors due to its inherent ability to produce complex geometries with high precision and customization. In this work, a 3D structure was designed to achieve a good light distribution inside a cylindrical batch reactor and printed using the stereolithography (SLA) technique. A hybrid material composed of a commercial photoreactive resin (Formlabs Clear V4) and the benchmark photocatalyst TiO2 P25 Evonik (1 wt%) was prepared and characterized by scanning electron microscopy (SEM) and rheological and mechanical methods. To evaluate the photocatalytic activity of the materials, several experiments on the photocatalytic degradation of Rhodamine B (RhB) were carried out using the 3D printed structure. Its performance was assessed by monitoring the concentration at specific times. Overall, the results demonstrate a simple, cost-effective, and fast technique to immobilize catalysts used in photocatalytic applications.

Graphical abstract: Efficient photocatalytic reactors via 3D printing: SLA fabrication and TiO2 hybrid materials

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Article information

Article type
Paper
Submitted
03 Oct 2024
Accepted
13 Jan 2025
First published
23 Jan 2025
This article is Open Access
Creative Commons BY license

RSC Adv., 2025,15, 2275-2286

Efficient photocatalytic reactors via 3D printing: SLA fabrication and TiO2 hybrid materials

I. S. O. Barbosa, Y. A. Manrique, D. Paiva, J. L. Faria, R. J. Santos and C. G. Silva, RSC Adv., 2025, 15, 2275 DOI: 10.1039/D4RA07121B

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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