Activation of peroxymonosulfate into amoxicillin degradation using cobalt ferrite nanoparticles anchored on graphene (CoFe₂O₄@Gr)

Abstract

The study focused on the catalytic activation of peroxymonosulfate (PMS) using cobalt ferrite nanoparticles decorated on graphene (CoFe₂O₄@Gr) into amoxicillin (AMX) degradation-based on sulfate radicals. Oxidation experiments were performed at different experimental variables such as PMS dosages, pH, reaction time and various concentrations of catalyst and AMX. CoFe₂O₄@Gr has a good magnetic response and rapidly separated from aquatic media. It also showed a significant catalytic activity in decomposition of PMS molecules. At optimum conditions, 99.27, 83.1 and 61.11% of AMX, chemical oxygen demand and total organic carbon were removed during 60 min reaction, respectively.

Keywords:

• Graphene
• amoxicillin
• heterogeneous catalyst
• peroxymonosulfate
• cobalt ferrite

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

Authors are sincerely appreciated Iran University of Medical Sciences, Tehran, Iran to support this research financially with 95-03-27-29413 project number.