Electrochemical detection and simultaneous removal of endocrine disruptor, bisphenol A using a carbon felt electrode

Minsoo Kim, Young Eun Song, Jiu Qiang Xiong, Kyoung Yeol Kim, Min Jang, Byong Hun Jeon, Jung Rae Kim

Research output: Contribution to journalArticlepeer-review

Abstract

2,2-Bis (4-hydroxyphenyl) propane (bisphenol A) is a precursor in many industrial and manufactural resins, plastics, and polycarbonate, as well as an endocrine disruptor in humans and animals. Therefore, the real-time sensing and in-situ removal of BPA are in strong demand. This study evaluated a method for the electrochemical detection of BPA using a carbon felt electrode. BPA was detected by cyclic voltammetry. During detection, the BPA was electropolymerized to a non-conductive lump and layer on the electrode surface. Simultaneously, the capacitance and electrochemical properties of the carbon felt decreased. The peak current and BPA concentration showed a linear correlation; the estimated detection limit was 4.78 × 10−7 M. The BPA-electropolymerized carbon felt could be regenerated successfully by ultrasonication. The detection and quantification of BPA in real water samples showed satisfactory recoveries of 98.4–101.0%. The carbon felt-based electrochemical analysis exhibited high sensitivity and reusability, making it applicable to the in-situ and on-site detection and removal of endocrine disruptors, such as BPA.

Original languageEnglish
Article number114907
JournalJournal of Electroanalytical Chemistry
Volume880
DOIs
StatePublished - 2021 Jan 1

Keywords

  • Bisphenol A
  • Carbon felt
  • Electrochemical detection and removal
  • Sonication

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