| Abstrakt: |
The current study focuses on comparative thermogravimetric analysis (TGA) and thermal characterization of Graphene Oxide (GO) and chitin (CH)-based magnetite nanomaterials such as Magnetic Graphene Oxide (MGO), Magnetic chitin (MCH), and Magnetic Graphene Oxide/Chitin (MGO/CH) for the first time. Various thermal parameters such as temperature of maximum mass change rate (Tmax), Crystallization Temperature (Tc), and Melting Temperature (Tm) have been investigated and heat of enthalpy has been calculated for both endothermic and exothermic processes. The pattern of degradation temperature for various percentages of weight loss has also been studied. In addition, the morphological characterization to study the microstructure was performed by scanning electron microscopy (SEM), and the structure, crystallinity, as well as nanoparticle size, were analyzed by XRD studies. From the Degradation patterns, we can infer that the thermal stability of the Magnetite nanocomposites synthesized by us is significantly higher and the corresponding weight loss is much lower than in the pristine material. This enhancement of thermal stability may be due to the intermolecular forces that exist between the polar units of magnetite particles. It is noteworthy that among all the nanocomposites, MCH is found to be the most thermally stable and has the least enthalpy for endothermic as well as exothermic events. With improved heat stability, graphene oxide and chitin-based nanomaterials have a greater potential for use in biomedical, environmental, electrical, catalytic, and food packaging applications. [ABSTRACT FROM AUTHOR] |
