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Title (Primary) Water dissociation in a radio-frequency electromagnetic field with ex situ electrodes—decomposition of perfluorooctanoic acid and tetrahydrofuran
Author Schneider, J.; Holzer, F.; Kraus, M.; Kopinke, F.-D.; Roland, U.;
Journal Plasma Sources Science & Technology
Year 2016
Department TUCHEM;
Volume 25
Issue 5
Language englisch;
POF III (all) T41;
UFZ wide themes RU3;
Abstract The application of radio waves with a frequency of 13.56 MHz on electrolyte solutions in a capillary reactor led to the formation of reactive hydrogen and oxygen species and finally to molecular oxygen and hydrogen. This process of water splitting can be principally used for the elimination of hazardous chemicals in water. Two compounds, namely perfluorooctanoic acid (PFOA) and tetrahydrofuran, were converted using this process. Their main decomposition products were highly volatile and therefore transferred to a gas phase, where they could be identified by GC-MS analyses. It is remarkable that the chemical reactions could benefit from both the oxidizing and reducing species formed in the plasma process, which takes place in gas bubbles saturated with water vapor. The breaking of C–C and C–F bonds was proven in the case of PFOA, probably initiated by electron impacts and radical reactions.
ID 17724
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=17724
Schneider, J., Holzer, F., Kraus, M., Kopinke, F.-D., Roland, U. (2016):
Water dissociation in a radio-frequency electromagnetic field with ex situ electrodes—decomposition of perfluorooctanoic acid and tetrahydrofuran
Plasma Sources Sci. Technol. 25 (5), art. 055003