HYBRID MAGNETIC NANOPARTICLES FOR WET PEROXIDE OXIDATION OF PARACETAMOL

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  • Presentation type: Oral
  • Track: 5.Environmental Catalysis
  • Keywords: hybrid magnetic nanoparticles; organic pollutant; Paracetamol; wastewater treatment; catalytic wet peroxide oxidation;

Authors:

  • 1 Instituto Politécnico de Bragança
  • 2 Universidad Rey Juan Carlos
  • 3 Universidade Tecnológica Federal do Paraná

HYBRID MAGNETIC NANOPARTICLES FOR WET PEROXIDE OXIDATION OF PARACETAMOL

Adriano dos Santos Silva

Instituto Politécnico de Bragança

Abstract

The performance of non-coated magnetic nanoparticle (MNPs) based on cobalt ferrite (CoFe2O4), and of carbon-coated cobalt ferrite prepared by a traditional method (CoFe2O4@C1), and by a greener method (CoFe2O4@C2) was assessed in the removal of paracetamol (PCM), used as model pharmaceutical pollutant, by catalytic wet peroxide oxidation (CWPO). The magnetic core was synthesized by sol-gel methodology, and the traditional method for carbon coating considered resorcinol and formaldehyde as carbon precursors. In contrast, the greener method was performed considering phloroglucinol and glyoxylic acid as carbon precursors. All MNPs presented activity on the removal of PCM by CWPO. Both carbon-coated MNPs overcome the results obtained with the bare core, due to the carbon layer covering the core, which can also have catalytic activity. The catalyst coated by the greener method (CoFe2O4@C2) shows a more controlled decomposition of hydrogen peroxide. A reutilization test performed to evaluate the stability of this catalyst showed complete removal of PCM faster than in the first usage, with a similar concentration trend profile in both repetitions.

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Author

Adriano dos Santos Silva

Dear, 

Thank you very much for your interest in our work. For now, this hybrid magnetic material was only applied as a catalyst for removing organic pollutants in batch experiments, as a screening strategy to assess which was the best carbon coating. For the next step, we will work on the upscaling and then we could be closer to giving you a certain answer regarding the feasibility of implementing our solution on large scale. At this moment, unfortunately, I cannot answer you that our system is competitive with others, but I would be glad to clarify this question in a near future with fresh results to support my claims. Again, thank you for your question. 

Cátia Graça

Ok, thanks for the answer.

 

Keep the good work and good luck for your future investigations