The degradation of PFAS in water was studied at first by using only cold plasma, then the possible enhancement by adding to the system boron-doped graphene oxide, graphene oxide and reduced graphene oxide, selected as catalysts, was investigated. All catalysts were characterized before and after the plasma treatment by various techniques such as XRD, SEM-EDS, AFM and FT-IR. During the study, it was observed that plasma produced by a multipin self-pulsed discharge (MSPD) was the most effective for obtaining a synergistic effect with the catalysts. A new reactor was then designed in which the MSPD discharge is generated both at the bottom and on the surface of the treated water (Double MSPD), with the purpose of decomposing all the products formed during PFAS degradation, including short-chain compounds with no surfactant properties. The degradation kinetics studies were carried out with different water matrixes, gas atmospheres, PFAS concentrations, and catalyst concentrations. Overall, use of boron-doped graphene oxide was the most successful, leading to a complete degradation in the first minute of treatment. The results of the project were presented at five international conferences, in three seminars (two in universities, one in public organization) and in three dissemination activities. Moreover, I attended the European Researcher Night as a public engagement event.