Cabrera Barrios, AarónPellejero, IsmaelOroz Mateo, TamaraSalazar, CristinaNavajas León, AlbertoFernandez Acevedo, ClaudioGandía Pascual, Luis2020-11-272021-11-0120201520-5045 (Electronic)10.1021/acs.iecr.0c04349https://academica-e.unavarra.es/handle/2454/38795Miniaturization is a key aspect for many technological applications and the use of microreactors is an excellent solution for the intensification of chemical processes for a variety of applications. However, standard microfabrication requires large facilities and intricate fabrication protocols, and consequently it is not easily available, generally resulting in high production costs. Herein, we present a very cheap, fast and easy microreactor design for photocatalytic applications based on direct fused filament 3D printing as a facilitating and widespread technology. The microreactor consists of three bodies directly printed in ABS (Acrylonitrile Butadiene Styrene): a main body with a serpentine microchannel pattern where the photocatalyst is placed, a top holder with a transparent polymer window, and a base to clamp the parts. Several microreactor units were coated with TiO2 doped with Cu (2.4 wt.%) nanoparticles synthesized by FSP (Flame Spray Pyrolysis) and tested for the photocatalytic degradation of two water pollutants showing excellent performance.25 p.application/pdfeng© 2020 American Chemical SocietyMicroreactorABS polymer3D printingPhotocatalysisCu-TiO2 nanoparticlesFlame spray pyrolysisinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess