Synthesis of BaFe12O19/MCM-41 Magnetic Nano-Composite

Magnetic nano-composite was synthesized by modified incorporation of iron-barium complex into ordered meso-porous silica (MCM-41) as a matrix. Phase composition, morphology and magnetic properties of the synthesized MCM-41 and the resulted composite were characterized by XRD, HRTEM/EDS and VSM techniques, respectively. Low angle XRD patterns of both calcined MCM-41 and resulted composite exhibit the characteristic reflection of high quality hexagonal meso-structures. TEM image of the composite material reveals that the hexagonal ordered meso-structure MCM-41 with a mean pore size of 3 nm was not affected by wet impregnation and re-calcination in order to incorporate with barium hexaferrite. The EDX analysis indicates presence of barium-iron composition inside the MCM-41 channels. The resulted composite material showed a superparamagnetic nature.