Water quality decline is a pressing environmental issue that has become even more important with the rise of harmful pollutants known as per- and polyfluoroalkyl substances (PFAS). For decades, these substances have been used in many industrial and commercial products. However, they are also toxic and extremely difficult to break down, leading to high bioaccumulation and posing dangers to both humans and the environment. Current water filtration methods struggle to efficiently remove all types of these pollutants, highlighting the need for better capture technologies.
A new study by CIVIS3i fellow Dr Edouardos Loukopoulos and co-workers reports the development of new porous materials that can remove various PFAS substances from water with greater efficiency compared to existing methods. To achieve this, the researchers used suitable metal-organic frameworks (MOFs), a class of materials known for their porosity, large surface area and water stability. They then added specific chemical groups to these MOFs to enhance the attraction between the pollutants and the material, improving the ability to trap various PFAS types. The most successful material of this tailoring method, called TFA-MOF-808, shows a large capture boost for representative PFAS compared to all previously reported porous materials.
Overall, this work offers a promising new approach for the design and development of advanced materials that can solve the problem of water contamination. The authors are now working to further improve this method and expand it to include more MOFs and PFAS types.
For more details, you can find the study here:
https://onlinelibrary.wiley.com/doi/10.1002/adfm.202409932
