Per- and polyfluoroalkyl substances (PFAS) have been used in a wide varity of consumer and inductrial products and are widely present in natural waters. The persistence of these class of chemicals coupled with reports on their adverse effects to animals and human have raised serious concern. Perfluorooctanesulfonate (PFOS) is one representative PFAS among those most frequently dectected in the natural environment. Our recent study demonstrated effective electrochemical oxidation (EO) of PFOS on porous Magnéli phase titanium sub-oxides (TSO) anodes. In this study, we have prepared and obtained TSO anodes of different compositions and porous structures, and conducted a series of experiments to evaluate and compare their efficiency for EO treatment of PFOS under different operation conditions. The results will help optimize the process of TSO-based EO treatment in PFAS treatment and development of optimum TSO anodes for such applications.

Electrochemical oxidation of perfluorooctanesulfonate (PFOS) on different porous Magnéli phase titanium suboxides anodes

2019 Fall National Meeting

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