A new reusable catalyst can finally destroy forever chemicals and trap 88% of the toxic fluorine they leave behind.
April 29, 2026
Original Paper
Heterogeneous Hydrodefluorination of Fluorinated Pollutants Enabled by Lewis Acidity Tuning and Fluorine Capture
SSRN · 6663095
The Takeaway
PFAS and GenX pollutants are nearly impossible to break down because the bonds between carbon and fluorine are some of the strongest in chemistry. This new brominated catalyst works at lower temperatures to snap these bonds apart and neutralize the chemicals. Most importantly, it doesn't just break the pollutants into smaller pieces, it actually captures the fluorine so it can't re-enter the environment. This is a massive breakthrough for cleaning up drinking water sources that have been contaminated for decades. It provides a scalable way to finally erase some of the most persistent toxins ever created by humans. This technology could save countless communities from toxic exposure.
From the abstract
Catalytic hydrodefluorination by heterogeneous catalysts represents a promising strategy for the transformation of persistent fluorinated organic compounds including PFAS, yet its efficiency is often limited by the catalyst activity and operating conditions. In this work, we show that bromination of the heterogeneous Lewis acidic catalyst called activated borane (ActB) significantly enhances its acidity, resulting in markedly improved performance in hydrodefluorination reactions. The increased a