Journal of Materials Science

, Volume 49, Issue 20, pp 7151–7155 | Cite as

Ion-exchange kinetics and thermal decomposition characteristics of Fe2+-exchanged alginic acid membrane for the formation of iron oxide nanoparticles

  • Zihua Wang
  • Jia Liu
  • Girish M. Kale
  • Mojtaba Ghadiri
Original Paper


The ion-exchange kinetics of Fe2+ cations in aqueous solution with H+ from alginic acid have been analyzed in this study as a function of contact time lengths using inductively coupled plasma-atomic emission spectrometry analysis. The kinetic parameters have been evaluated using pseudo 1st or 2nd order models, and a consistent ion-exchange mechanism is suggested. Furthermore, an insight into the calcination of Fe2+ ion-exchanged alginic acid process has been obtained by using simultaneous thermo-gravimetric analysis coupled with differential scanning calorimetry and high temperature X-ray diffraction.


Alginate Sodium Alginate Alginate Bead Order Kinetic Model Sodium Alginate Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



ZW wishes to thank IMR for partial financial aid. The authors wish to thank IMR, IPSE, and SPEME for providing research facilities and infrastructure. The authors wish to thank Dr. AM Cunliffe for assistance with TGA/DSC and ICP-AES analysis.


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Zihua Wang
    • 1
  • Jia Liu
    • 1
  • Girish M. Kale
    • 1
  • Mojtaba Ghadiri
    • 2
  1. 1.Institute for Materials Research, School of Process, Environmental and Materials EngineeringUniversity of LeedsLeedsUK
  2. 2.Institute of Particle Science and Engineering, School of Process, Environmental and Materials EngineeringUniversity of LeedsLeedsUK

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