Preparation of stable colloidal dispersion of surface modified Fe₃O₄ nanoparticles for magnetic heating applications.

ABSTRACT: The effect of surface modification on enhancing the magnetic heating behavior of magnetic nano fluids were investigated, for this purpose Fe₃O₄ nanoparticles were synthesized using co-precipitation method and surface modification was done using citric acid, ascorbic acid, tetraethyl orthosilicate (TEOS), polyvinyl alcohol (PVA) and polyethylene glycol (PEG). Experimental heating tests using AC magnetic field were done in the frequency of 100 kHz and different magnetic field (H) intensities. Theoretically the specific absorption rate (SAR) in magnetic nano fluids is independent of nanoparticles concentration but the experimental results showed different behavior. The theoretical SAR value @ H = 12kA.m^-1 for Nano fluids containing bare Fe₃O_4</

SUBMITTER: Sabzi Dizajyekan B 

PROVIDER: S-EPMC10788351 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature