Multifaceted properties of Ni and Zn codoped MgO nanoparticles

Area of Science:

• Materials Science
• Nanotechnology
• Solid State Chemistry

Background:

• Advancements in material science focus on novel nanomaterials.
• Magnesium oxide (MgO) is a versatile nanomaterial with potential applications.
• Understanding synergistic effects of dual doping is crucial for material innovation.

Purpose of the Study:

• To synthesize and characterize Ni, Zn dual doped MgO nanoparticles.
• To investigate the impact of Ni and Zn codoping on MgO's structural, optical, and magnetic properties.
• To evaluate the antibacterial efficacy of the synthesized nanomaterials.

Main Methods:

• Facile chemical precipitation and coprecipitation synthesis.
• Characterization using FESEM, EDX, XRD, absorption, and photoluminescence spectroscopy.
• Estimation of crystallite size, strain, and dislocation density via Scherrer and Williamson-Hall methods.

Main Results:

• Codoping reduced the bandgap of MgO, as shown by Tauc plot analysis.
• Photoluminescence spectra revealed emissions from defect levels induced by Ni and Zn codoping.
• Ferromagnetism was induced, with saturation magnetization up to 5.4668 × 10^-3 emu for 10%Ni-20%Zn doped MgO.
• All synthesized samples demonstrated effectiveness against Staphylococcus aureus.

Conclusions:

• Ni, Zn dual doping significantly modifies the characteristics of MgO nanoparticles.
• The study provides valuable insights into the multidimensional impact of codoping on MgO.
• These findings support diverse applications in materials research and development.