Mercury removal in wastewater by iron oxide nanoparticles

E. Vélez, G. E. Campillo, G. Morales, C. Hincapié, J. Osorio, O. Arnache, J. I. Uribe, F. Jaramillo

Research output: Contribution to conferencePaper

16 Scopus citations


Mercury is one of the persistent pollutants in wastewater; it is becoming a severe environmental and public health problem, this is why nowadays its removal is an obligation. Iron oxide nanoparticles are receiving much attention due to their properties, such as: great biocompatibility, ease of separation, high relation of surface-area to volume, surface modifiability, reusability, excellent magnetic properties and relative low cost. In this experiment, Fe3O4and γ-Fe2O3nanoparticles were synthesized using iron salts and NaOH as precipitation agents, and Aloe Vera as stabilizing agent; then these nanoparticles were characterized by three different measurements: first, using a Zetasizer Nano ZS for their size estimation, secondly UV-visible spectroscopy which showed the existence of resonance of plasmon at λmax∼360 nm, and lastly by Scanning Electron Microscopy (SEM) to determine nanoparticles form. The results of this characterization showed that the obtained Iron oxides nanoparticles have a narrow size distribution (∼100nm). Mercury removal of 70% approximately was confirmed by atomic absorption spectroscopy measurements.
Original languageAmerican English
StatePublished - 12 Feb 2016
EventJournal of Physics: Conference Series -
Duration: 12 Feb 2016 → …


ConferenceJournal of Physics: Conference Series
Period12/02/16 → …

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    Vélez, E., Campillo, G. E., Morales, G., Hincapié, C., Osorio, J., Arnache, O., Uribe, J. I., & Jaramillo, F. (2016). Mercury removal in wastewater by iron oxide nanoparticles. Paper presented at Journal of Physics: Conference Series, .