Speaker
Description
In this study we transformed the characteristics of silver nanoparticles from non-magnetic to
magnetic by enclosing them in a boron nitride matrix, which seprates the silver nanoparticles
from each other, making their magnetic moment parallel. The chemical method used to
manufacture the silver nanoparticles in boron nitride matrix (Ag NB) was freeze- drying .XRD
data revealed that the average size of Ag BN nanoparticles was 6.41 nm, which is similar to the
particle size obtained by TEM, 11 nm. We also discovered that Ag BN nanoparticles have
ferromagnetic characteristics at 300 K (room temperature) with magnetic parameters such as
magnetic saturation ,coercivity and retentivity of Ms=0.0115 emu/g, Hc=0.017 T, and
Mr=0.0007 emu/g. In addition to photoluminescence at 430 nm (2.8 eV), in the visible and blue
light regions. Our investigation of Ag BN nanoparticles has revealed unexpected magnetization
in silver nanoparticles, as ferromagnetic (FM) ordering is normally observed in transition-metal
systems generally originates from partially filled d-electron shells. Thus, the mechanism
responsible for this observed magnetization remains ambiguous. We utilize first-principles spin-
polarized density functional theory to examine the magnetization in Ag nanoclusters. Silver
nanoparticles with enhanced magnetic capabilities allow them to be used in a variety of essential
applications, including magnetic storage, medical imaging, medication delivery, cancer
treatment, and water purification [1,2,3].
Key words: silver, Boron Nitride, Freeze drying,Magnteic properteis ,Nano
Refrences
[1] N. Joudeh and D. Linke, “Nanoparticle classification, physicochemical properties,
characterization, and applications: a comprehensive review for biologists,” J
Nanobiotechnol, vol. 20, no. 1, p. 262, Jun. 2022, doi: 10.1186/s12951-022-01477-8.
[2] D. D. Stueber, J. Villanova, I. Aponte, Z. Xiao, and V. L. Colvin, “Magnetic
nanoparticles in biology and medicine: past, present, and future trends,” Pharmaceutics,
vol. 13, no. 7, p. 943, 2021, Accessed: Nov. 12, 2024. [Online]. Available:
https://www.mdpi.com/1999-4923/13/7/943
[3] D. D. Stueber, J. Villanova, I. Aponte, Z. Xiao, and V. L. Colvin, “Magnetic
nanoparticles in biology and medicine: past, present, and future trends,” Pharmaceutics,
vol. 13, no. 7, p. 943, 2021, Accessed: Nov. 12, 2024. [Online]. Available:
https://www.mdpi.com/1999-4923/13/7/943.
