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

• Type: Article in International Scientific Journal
• Date: 2025

Authors

Barbosa, ISO (Author) Other; Manrique, Y.A. (Author) FEUP; Paiva, D (Author) Other; Faria, JL (Author) Other; Santos, RJ (Author) Other; Silva, CG (Author) Other

Journal

Title: RSC Advances

Vol. 15

Pages: 2275-2286

ISSN: 2046-2069

Publisher: Royal Society of Chemistry

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-017-Y6Q

DOI: 10.1039/d4ra07121b

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12