PREDICTION OF BISPHENOL A DEGRADATION PATHWAYS DURING ELECTROCHEMICAL OXIDATION

17th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings, Volume I) (2024) [C-07-P, pp. 81-84]

AUTHOR(S) / AUTOR(I): Marija Simić , Marija Kovačević ,  Katarina Stojanović ,  Marija Ječmenica Dučić , Dragana Vasić Anićijević , Tanja Brdarić , Danka Aćimović 

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DOI: 10.46793/Phys.Chem24I.081S

ABSTRACT / SAŽETAK:

Electrochemical oxidation emerges as a highly promising technique for removing organic pollutants from water and wastewater, employing electrons as a clean reagent. In this study, we aim to evaluate the oxidative degradation of bisphenol A by identifying its intermediates and projecting the degradation pathway over a five-hour period of electrochemical oxidation on SnO2-MWCNT electrode. The presence of BPA and its derivatives in wastewater treatment poses a common challenge in environmental chemistry. During electrochemical oxidation, nine BPA intermediates were identified. The process involved silanization to generate trisilyl esters and ethers, aiding in the determination of their structures. Based on these findings, two primary degradation pathways were identified: hydroxylation of the aromatic ring of BPA and direct cleavage of the BPA molecule. Ultimately, both pathways lead to the production of diverse aliphatic acids, along with the release of CO2 and water.

KEYWORDS / KLJUČNE REČI:

ACKNOWLEDGEMENT / PROJEKAT:

This work was supported by Ministry of Science, Technological Development, and Innovation of the Republic of Serbia [grant number 451-03-66/2024-03/200017].

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