3D-Printed Ceramic Monoliths Remove PFAS From Water

The search for innovative solutions to eliminate perfluoroalkyl substances from water is advancing, thanks to researchers at the University of Bath in England, who have developed a groundbreaking tool that could significantly aid this effort.

In a study featured in the Chemical Engineering Journal, the team showcased their 3D-printed tendril-shaped ceramic monoliths that can remove 75% of PFOA from water. These four-cm-long monoliths have a lattice design and can be regenerated for reuse through high-temperature heat treatment, restoring their purification capabilities.

To create these monoliths, they used the VormVrij Lutum®5 ceramic 3D printer and ink impregnated with ceramic indium oxide. When dipped in water contaminated with PFAS, this material attracts these substances, completing the removal of ‘forever chemicals’ within three minutes.

Dr. Liana Zoumpouli, Research Associate in the Department of Chemical Engineering at the University of Bath, shared insights into the creation process: 

“Using 3D printing to create the monoliths is relatively simple, and it also means the process should be scalable. 3D printing allows us to create objects with a high surface area, which is key to the process. Once the monoliths are ready you simply drop them into the water and let them do their work. It’s very exciting and something we are keen to develop further and see in use.”

Other than eliminating 75% of PFOA, these monoliths proved compatible with water treatment plants currently operating in the UK and other parts of the world. The team plans to improve the monoliths and equip them with features suitable for large-scale operations.

Read the full article here to learn more about these 3D-printed indium oxide monoliths.

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