Pharmaceutical contaminants are causing a serious environmental issue, requiring adequate treatments. The present work deals about the electro-oxidation of trimethoprim (TMP) presenting in the pharmaceutical wastewater. Thus we developed graphite carbon paste electrode (CPE) having AgNP and AuNPs at different proportions, and then they were characterized by different analytical methods (XRD, FT-IR, SEM, TEM). The electrochemical performance of all the electrode systems was studied, and the results were compared with that of commercially existing electrode. Furthermore, in the electrochemical oxidation, the concentration of TMP measured was plotted against time, and analyzed the efficiency of oxidation by different electrode systems. The results show that there exists a considerable degradation of substrate, and observed the formation of intermediates determined by GC-MS.  Interestingly, the electrode of CPE/Au/AgNPs oxidizes TMP efficiently than other electrodes (CPE/Au NPs, CPE/Ag NPs, and CPE) due to its synergic effect generated from Ag/Au with CPE than the individual systems.

Electro-oxidation of trimethoprim using new electrode system based on graphite carbon paste modified with Au/Ag nanoparticles

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.