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Vol. 32 No. 3 (2020): Vol 32 Issue 3

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Theoretical Verification of Dielectric and Magnetic Properties of Polyaniline-Nickel Ferrite Nanocomposites Synthesized in Green Medium Extracted from the Fruit of Tamarindus indica

https://doi.org/10.14233/ajchem.2020.22469
T.R. Smitha
Department of Chemistry, T.K.M.M. College (Affiliated to University of Kerala), Nangiarkulangara-690513, India
Thushara Bhadran
Department of Chemistry, Santana Dharma College (Affiliated to University of Kerala), Alappuzha-688003, India
Vaishali Shanker
Department of Chemistry, Santana Dharma College (Affiliated to University of Kerala), Alappuzha-688003, India
K.H. Prema
Department of Chemistry, Santana Dharma College (Affiliated to University of Kerala), Alappuzha-688003, India

Corresponding Author(s) : K.H. Prema

premakh@gmail.com

Asian Journal of Chemistry, Vol. 32 No. 3 (2020): Vol 32 Issue 3

Abstract

Nanocomposite materials of nickel ferrite incorporated polyaniline (PANI) have been synthesized via in situ oxidative polymerization technique in a green medium extracted from the fruit of plant Tamarindus indica. Synthesized particles were characterized by FT-IR spectroscopy, X-ray diffraction technique and scanning electron microscopy. Various samples of composites were prepared with 5, 10 and 15 g of filler nickel ferrite and the variation in dielectric permittivity is calculated by measuring the capacitance of the materials in various external frequency ranges from 100 Hz to 20 MHz. Experimental values of dielectric property are compared with theoretical values obtained from Maxwell-Wagner equation. The magnetic properties such as saturation magnetization (Ms), magnetic remanance (Mr) and coercivity (Hc) of the samples were analyzed by vibrating sample magnetometer (VSM). Retention of the magnetic filler in the PANI matrix is evaluated by comparing the experimental Ms values of the composites with the values computed from a theoretical linear equation. The experimental results were well fitted with the theoretical values and confirmed the synthesis of PANI-nickel ferrite composites with desired electrical and magnetic properties by varying the amount of components.

Keywords

Tamarindus indica Nanocomposites Dielectric property Maxwell-Wagner equation VSM analysis
Smitha, T., Bhadran, T., Shanker, V., & Prema, K. (2020). Theoretical Verification of Dielectric and Magnetic Properties of Polyaniline-Nickel Ferrite Nanocomposites Synthesized in Green Medium Extracted from the Fruit of Tamarindus indica. Asian Journal of Chemistry, 32(3), 646–652. https://doi.org/10.14233/ajchem.2020.22469
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