On the gum arabic to improve the thermal properties of Fe3O4 nanoparticles

E I A Elbeshir

doi:10.1063/5.0044472

Abstract

In this study, the thermal properties of the powder sample of Fe3O4 magnetic nanoparticles prepared by the co-precipitation method and characterized by x-ray diffraction and transmission electron microscopy have been reported. An induction heater was used to determine the thermal properties of the sample coated with gum arabic (GA) in various concentrations, viz., X = 0, 20, 40, 60, and 80 mg/ml. The results show that the thermal properties of the sample depend on the concentration of GA. Furthermore, it was found that the specific heat capacity (CG) of the GA solution decreased with the increase in the concentration of GA.

Highlights

The thermal effect of magnetic nanoparticles (MNPs) in treating magnetic hyperthermia (MH) has been known for several years
To determine the thermal properties [maximum temperature (Tmax.) in ○C, heating rate (ΔT/Δt) in ○C/s, and specific absorption rate (SAR) in W/g] of Fe3O4, first 1 ml of (DI) water was exposed to the induction heater and suspended in 1 mg Fe3O4 + X + 1 ml of DI (X = 0, 20, 40, 60, and 80 mg of gum arabic (GA))
B cos θ where t is the thickness of the sample; K is a constant, which is equal to 0.9; λ = 1.4506 Å is the wavelength of the Cu target in the X-ray diffraction analysis (XRD); B is the full width at half maximum (FWHM); and θ is Bragg’s angle

Summary

INTRODUCTION

The thermal effect of magnetic nanoparticles (MNPs) in treating magnetic hyperthermia (MH) has been known for several years. The proven ability of MNPs as a heating agent is effective in magnetic hyperthermia treatment (MHT).. Several studies were interested in improving the thermal properties of MNPs and the heat transfer between the nano-fluid and the MNP sample. These properties can be enhanced by many factors such as sample preparation, base fluid, ferrite concentration, relaxation time, and viscosity of the nano-fluid.. The main objective of adding the GA—commonly used in food processing—to Fe3O4 MNPs is to enhance the maximum temperature, heating rate, and specific absorption rate (SAR) of this sample. The GA has several physical properties, such as specific heat, density, and viscosity, which improve their thermal properties and enhance the performance of the MNPs.. 1 mg of Fe3O4 MNPs + 1 ml of de-ionized (DI) water and GA solution in various concentrations (X mg/ml) are used to study the link with the thermal property

EXPERIMENTAL DETAILS

RESULTS AND DISCUSSION

Results of thermal properties

CONCLUSION