Synthesis and characterization of Fe3O4: Porous carbon nanocomposites for biosensor application | Zendy

Manju Arora | Zendy; Rayees Ahmad Zargar | Zendy

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Synthesis and characterization of Fe3O4: Porous carbon nanocomposites for biosensor application

Author(s) -

Manju Arora,

Rayees Ahmad Zargar

Publication year - 2015

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.4929223

Subject(s) - materials science , coercivity , crystallinity , nanocomposite , annealing (glass) , porosity , inert gas , chemical engineering , ferrite (magnet) , stoichiometry , composite material , coprecipitation , magnetization , analytical chemistry (journal) , chemistry , magnetic field , physics , organic chemistry , chromatography , engineering , condensed matter physics , quantum mechanics

Fe3O4:Porous carbon (Fe3O4:PC) nano-magnetic composites were prepared by using different weight fractions of acid treated PC by the chemical co-precipitation route and annealed at 573 K, 773 K and 973 K temperatures in inert N2 gas atmosphere for 2 hrs to obtain desired stoichiometry of nanocomposites. The structural, morphological and magnetic properties of these composites were characterized by powder XRD, TEM, EPR and VSM analytical techniques. The crystallinity of the composites, g-value and spin concentration increases with increasing annealing temperature. TEM images confirmed the formation of nanosized ferrite nanoprticles whose size increases from 23 nm to 54 nm on increasing annealing temperature. Porous carbon increases porosity, coercivity and reduces saturation magnetization of these prepared nanocomposites.

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