Tapioca starch in the sol-gel synthesis of cobalt ferrites with divalent cation substitutions

Authors

Anuchit Hunyek, Program of General Education - Science (Physics), Faculty of Liberal Arts, Rajamangala University of Technology Rattanakosin,
Chitnarong Sirisathitkul, School of Science and Center of Excellence in Functional Materials and Nanotechnology, Walailak University
Krit Koyvanich, Department of Physics, Prince of Songkla UniversityFollow

Abstract

An aqueous solution of tapioca starch was successfully used as a chelating agent in the sol-gel synthesis of Co0.7Me0.3Fe2O4, where Me denotes Co, Mn, Cu, Ni, or Zn. The hysteresis loops of all sintered ferrites revealed ferrimagnetic properties. The saturation magnetization was reduced in Co0.7Cu0.3Fe2O4 and Co0.7Ni0.3Fe2O4 because of the ion substitutions with smaller magnetic moments. Interestingly, Co0.7Cu0.3Fe2O4 exhibited the highest saturation magnetization and the lowest coercive field. This result demonstrates the value addition of local agricultural products in controlling nanoparticle formation during sol-gel synthesis.

Recommended Citation

Hunyek, Anuchit; Sirisathitkul, Chitnarong; and Koyvanich, Krit (2022) "Tapioca starch in the sol-gel synthesis of cobalt ferrites with divalent cation substitutions," Karbala International Journal of Modern Science: Vol. 8 : Iss. 3 , Article 10.
Available at: https://doi.org/10.33640/2405-609X.3250

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