Synthesis of novel MnCo2O4/NaY zeolite nanocomposite adsorbent and its performance for Sr2+ ions removal from drinking water

  • Meysam SadeghiEmail author
  • Sina Yekta
  • Daryoush Mirzaei
  • Abedin Zabardasti
  • Saeid Farhadi
Original Article


The present study describes the effective performance of MnCo2O4/NaY zeolite (MnCo2O4: 18.7 wt%) as a novel nanocomposite adsorbent for the removal of Sr2+ ions from drinking water of Tehran city. The reactions were all carried out under pre-organized optimized conditions and the subsequent monitoring was accomplished via the ultra-low level liquid scintillation counting (LSC) analysis. The characterization study of samples was carried out using scanning electron microscope, energy dispersive X-ray, atomic force microscope, powder X-ray diffraction and Fourier-transform infrared spectroscopy. Multiple experimental conditions including adsorbent dose, pH, adsorbent type and contact time were applied for the adsorption-removal process of Sr2+ ions by the MnCo2O4/NaY nanocomposite adsorbent. The results from LSC concluded that Sr2+ was operatively adsorbed on the nanocomposite surface active sites after 180 min at room temperature with a yield more than 95%. The reaction kinetic data was precisely studied by employing pseudo-first and second-orders, intra particle diffusion and Elovich models. The adsorption kinetics was found to fit the pseudo-second-order model. Moreover, the investigation of the thermodynamic parameters such as \(\varDelta {\text{G}}^{0}\), \(\varDelta {\text{H}}^{0}\)and \(\varDelta {\text{S}}^{0}\), specified that adsorption procedure of Sr2+ was spontaneous and expresses a physic-chemical adsorption characteristics and exothermic feature of the adsorption reaction. The sequential experiments of reproducibility for the synthesized nanocomposite against Sr2+ ions showed removal efficiency of more than 91% for all those cycles.


MnCo2O4/NaY Sr2+ ions Removal Kinetic Thermodynamic 



The authors give their sincere thanks to the Lorestan University of Khorramabad, Iran for all sincere supports.


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • Meysam Sadeghi
    • 1
    Email author
  • Sina Yekta
    • 2
  • Daryoush Mirzaei
    • 1
  • Abedin Zabardasti
    • 1
  • Saeid Farhadi
    • 1
  1. 1.Department of ChemistryLorestan UniversityKhorramabadIran
  2. 2.Department of ChemistryPayame Noor University (PNU)TehranIran

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