3D Printed Fully Recycled TiO2-Polystyrene Nanocomposite Photocatalysts for Use against Drug Residues

Abstract

In the present work, the use of nanocomposite polymeric filaments based on 100% recycled solid polystyrene everyday products, enriched with TiO2 nanoparticles with mass concentrations up to 40% w/w, and the production of 3D photocatalytic structures using a typical fused deposition modeling (FDM)-type 3D printer are reported. We provide evidence that the fabricated 3D structures offer promising photocatalytic properties, indicating that the proposed technique is indeed a novel low-cost alternative route for fabricating large-scale photocatalysts, suitable for practical real-life applications.

3D Printing based on Photopolymerization and Photocatalysts: Review and Prospect

“…The easiest way to print a photocatalytic product is to disperse the active ingredient (inorganic particles) in a printable system and then print it using inkjet or extrusion method. [54][55][56][57] Inkjet 3D printing is a promising material deposition technology wherein the ink is jetted onto a support in droplet form. [58] This approach offers new opportunities for inkjet printing of TiO 2 thin films on flexible substrates.…”

“…The easiest way to print a photocatalytic product is to disperse the active ingredient (inorganic particles) in a printable system and then print it using inkjet or extrusion method. [ 54–57 ]…”

Anisotropic solid-state PLA foaming templated by crystal phase pre-oriented with 3D printing: cell supporting structures with directional capillary transfer function

“…Nevertheless, finer structural details below the resolution limit could be prepared by governing the microstructure of the printed material, e.g. , by varying the printing conditions 9–11 and the print design, 12 adding modifiers and fillers, 13–15 or post-processing. 16…”

Titanium Dioxide Structure Modified With Silver Chloride By 3D Printing For Dye Degradation And Bactericidal Applications

“…By fused deposition modeling, TiO2 -based photocatalytic filters were produced, and the PLA/30 wt% TiO2 nanoparticle photocatalyst exhibited 100% methyl orange (MO) degradation after 24 h of illumination [33]. According to Sebastaki et al [34], 100% recycled solid polystyrene was composited with 40% w/w TiO2 nanoparticles to make composite filaments, which were then printed using an FDM process to fabricate 3D structures with photocatalysis. The ceramic-FFF process is similar to the Fused deposition modeling (FDM) process except that different materials are used.…”