Nanosized Fe3O4–curcumin conjugates for adsorption of heavy metals from seawater samples

  • Ali MehdiniaEmail author
  • Reza Mirzaeipour
  • Ali Jabbari
Original Paper


Magnetic nanoparticles (MNPS) functionalized by curcumin (Cur) was synthesized with a simple co-precipitation method and used for removal of Cu(ІІ), Cd(ІІ) and Co(ІІ) in natural water samples. The Cur-coated MNPS were characterized by XRD, EDX, FT-IR, FE-SEM and TEM techniques. TEM result showed the particle size of < 20 nm for the synthesized material. The optimum extraction conditions were obtained as sample pH in the range of 6.5–7.5 and the sorbent mass of about 6 mg for the metals. The fast extraction times (≤ 3 min) were obtained for sorption of Cu (II), Cd(ІІ) and Co(ІІ). The complete elution from the sorbent surface was carried out using 0.5 mL HNO3 solution (0.1 mol L−1). The detection limit of the method was found to be lower than 0.5 ng L−1 for the analytes. The analytical curve was linear from 0.4 to 70 µg L−1 for Cu(ІІ) and Cd(ІІ), and 1.5–50 µg L−1 for Co(ІІ) with an correlation coefficients of > 0.991 and a relative standard deviation of 1.3% (n = 6).


Heavy metals Curcumin Magnetic extraction Nanocomposite Removal 


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Copyright information

© Iranian Chemical Society 2019

Authors and Affiliations

  1. 1.Department of Marine Living Science, Ocean Science Research CenterIranian National Institute for Oceanography and Atmospheric scienceTehranIran
  2. 2.Department of Chemistry, Faculty of ScienceK. N. Toosi University of TechnologyTehranIran

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