https://www.cas.cn/cm/202411/t20241121_5040177.shtml

https://www.nature.com/articles/s41586-024-08179-1

Professor Kang Yanbiao and his team from the University of Science and Technology of China have created an organic small molecule super photoreductant 10,13-diphenyl-9H-dibenzo[a,c]carbazole (KQGZ) that distorts and promotes the gain and loss of electrons.

Based on this reagent, they have developed a new method for the complete defluorination of perfluorinated and polyfluoroalkyl compounds such as Teflon at relatively low temperature (40 to 60 degrees Celsius), realizing the recovery of the difficult-to-degrade “permanent chemicals” – perfluorinated and polyfluoroalkyl substances – into inorganic fluoride salts and carbon resources.