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A COMBINED PHOTO/ELECTROCHEMICAL REDUCTIVE PATHWAY TOWARDS ENHANCED PFAS DEGRADATION
Jassby, D., D. Cwiertny, and B. Wong. SERDP Project ER18-1595, 29 pp, 2020
This project examined how potential-induced electron transfer (ET) processes can dramatically increase the defluorination rate of PFOS molecules by UV-generated he in an additive-free system. Results demonstrated how the specific adsorption of PFOS onto electrodes with tailored chemical properties could facilitate ET between the electrode and the adsorbed PFOS, which enables UV-generated he to rapidly defluorinate PFOS. The study was extended to investigate the effect of the head group and alkyl chain length on the extent of PFAS degradation, and on other co-contaminants, including chlorinated solvents such as TCE and cis-DCE. https://www.serdp-estcp.org/content/download/51376/505530/file/ER18-1595%20Final%20Report.pdf
This project examined how potential-induced electron transfer (ET) processes can dramatically increase the defluorination rate of PFOS molecules by UV-generated he in an additive-free system. Results demonstrated how the specific adsorption of PFOS onto electrodes with tailored chemical properties could facilitate ET between the electrode and the adsorbed PFOS, which enables UV-generated he to rapidly defluorinate PFOS. The study was extended to investigate the effect of the head group and alkyl chain length on the extent of PFAS degradation, and on other co-contaminants, including chlorinated solvents such as TCE and cis-DCE. https://www.serdp-estcp.org/content/download/51376/505530/file/ER18-1595
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