Enhanced Biocompatibility and Multifunctional Properties of Iron-Doped Zinc Oxide Nanoparticles for Applications

• Published in: BioNanoScience 2024-06, Vol.14 (2), p.1665-1673
• Main Authors: Foyshal, M., Kabir, M. F., Islam, A., Ferdousy, J., Islam, R., Rahman, M. M.
• Format: Article
• Language: English
• Subjects: Biological and Medical Physics; Biomaterials; Biophysics; Circuits and Systems; Engineering; Nanotechnology
• ISSN: 2191-1630; 2191-1649
• DOI: 10.1007/s12668-024-01342-y

Zinc oxide nanoparticles (ZnO NPs) are presently regarded as highly promising nanomaterials for various applications, such as biomedical applications and the fabrication of electronic devices. Additionally, introducing iron doping offers a means to improve the properties of these nanoparticles. ZnO and iron-doped ZnO (Fe:ZnO) NPs were synthesized using the wet chemical process. X-ray diffraction (XRD) analysis illustrates that the crystallite dimension of these nanoparticles decreased as the iron (Fe) concentration increased up to 20%, and then it continued to increase as the iron proportion increased. The surface morphology of these nanoparticles was evaluated by scanning electron microscopy (SEM). The functional groups of active ZnO and Fe:ZnO samples are obtained by FTIR analysis. The peak at 399 cm −1 indicates that Zn–O bonds are successfully formed. Dynamic light scattering (DLS) was used to determine the hydrodynamic diameter of ZnO and Fe:ZnO NPs. Zeta potential values for ZnO, Fe10%:ZnO, Fe20%:ZnO, and Fe30%:ZnO were 0.2 mV, 0.4 mV, 0.6 mV, and 0.9 mV, respectively. All samples exhibited strong absorption peaks at 350 nm in the UV region. Tauc’s approach was used to calculate the band gap energy of these samples. The band gap decreased as the concentration of Fe increased. This study has successfully established a strong correlation between the structural and other properties of Fe-doped ZnO nanoparticles.