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Toxins 2018, 10(9), 361; https://doi.org/10.3390/toxins10090361

A Novel Adsorbent Magnetic Graphene Oxide Modified with Chitosan for the Simultaneous Reduction of Mycotoxins

1
Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, 43400 Selangor, Malaysia
2
Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, Serdang, 43400 Selangor, Malaysia
3
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang, 43400 Selangor, Malaysia
*
Author to whom correspondence should be addressed.
Received: 20 June 2018 / Revised: 21 August 2018 / Accepted: 24 August 2018 / Published: 6 September 2018
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Abstract

A novel magnetic graphene oxide modified with chitosan (MGO-CTS) was synthesised as an adsorbent aimed to examine the simultaneous removal of mycotoxins. The composite was characterised by various procedures, namely Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and a scanning electron microscope (SEM). The adsorption evaluation was considered via pH effects, initial mycotoxin concentration, adsorption time and temperature. Adsorption isotherm data and kinetics experiments were acquired at the optimum pH 5 fit Freundlich isotherm as well as pseudo-second-order kinetic models. The thermodynamic results indicated that the adsorption of the mycotoxins was spontaneous, endothermic and favourable. View Full-Text
Keywords: adsorbent; reduction of mycotoxins; isotherms; kinetics; thermodynamics adsorbent; reduction of mycotoxins; isotherms; kinetics; thermodynamics
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Abbasi Pirouz, A.; Abedi Karjiban, R.; Abu Bakar, F.; Selamat, J. A Novel Adsorbent Magnetic Graphene Oxide Modified with Chitosan for the Simultaneous Reduction of Mycotoxins. Toxins 2018, 10, 361.

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