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Electrochemical Co-Degradation of Acetaminophen and Bisphenol A in Aqueous Solutions - Degradation Competition and Pathways

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2024-11-23
JournalProcesses
AuthorsKuoā€Lin Huang, Jui-Chiung Hung, Yiā€Ming Kuo
InstitutionsNational Pingtung University of Science and Technology, Chung Hwa University of Medical Technology
Citations2

Abstract

Section titled ā€œAbstractā€

This study investigated the degradation competition and pathways of electrochemical co-degradation of two emerging environmental contaminants, polar acetaminophen (AP) and (moderately) non-polar bisphenol A (BPA), on a boron-doped diamond (BDD) electrode in aqueous solutions. The results showed that both compounds mainly relied on hydroxyl radicals (ā€¢OH) to trigger indirect oxidation for their electrochemical degradation, although AP also underwent direct oxidation during electrolysis. The effect of increasing current density on the increases in degradation performance was almost the same for AP and BPA. However, BPA exhibited a better performance in mono-degradation than AP, while the opposite tendency was observed for their co-degradation. Their degradation efficiencies were better in 1 M Na2SO4 solution than in a real water matrix. Both UV-vis and excitation-emission matrix (EEM) fluorescence analyses demonstrated that all the aromatic rings of AP and BPA were opened after 30 min of electrolysis at 0.5 A cmāˆ’2 in 1 M Na2SO4 solution. Regardless of the small difference in intermediate species, the pathways of electrochemical AP+BPA co-degradation were similar to those of their mono-degradation combination. A double exponential decay model is proposed to simulate the formation and degradation rate constants of benzoquinone (an intermediate).

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
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  2. 2022 - A Critical Review on Paracetamol Removal from Different Aqueous Matrices by Fenton and Fenton-Based Processes, and Their Combined Methods [Crossref]
  3. 2015 - Effects of the Environmental Estrogenic Contaminants Bisphenol A and 17a-ethinyl Estradiol on Sexual Development and Adult Behaviors in Aquatic Wildlife Species [Crossref]
  4. 2016 - Influence of Lipophilicity on the Toxicity of Bisphenol A and Phthalates to Aquatic Organisms [Crossref]
  5. 2024 - Comprehensive Review of Emerging Contaminants: Detection Technologies, Environmental Impact, and Management Strategies [Crossref]
  6. 2023 - Wastewater Treatment by Anodic Oxidation in Electrochemical Advanced Oxidation Process: Advance in Mechanism, Direct and Indirect Oxidation Detection Methods [Crossref]
  7. 2016 - Application of Activated Persulfate for Removal of Intermediates from Antipyrine Wastewater Degradation Refractory towards Hydroxyl Radical [Crossref]
  8. 2021 - Response Surface Methodology-Based Fabrication of Boron-Doped Diamond Electrodes for Electrochemical Degradation of Guaifenesin in Aqueous Solutions [Crossref]
  9. 2009 - Electrochemical Degradation of Bisphenol A on Different Anodes [Crossref]
  10. 2012 - Electrochemical Detection and Degradation of Acetaminophen in Aqueous Solutions [Crossref]

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