Functionalization ZnAl 1 . 9 Eu 0 . 1 O 4 /SiO 2 Nanoparticles Using Chitosan

This work evaluated the use of chitosan as a biomolecule to functionalize the ZnAl1.9Eu0.1O4/SiO2 nanoparticles with 3:1 w/w chitosan to nanoparticles. ZnAl1.9Eu0.1O4 nanoparticles were obtained by combustion reaction and silanized with 3-aminopropyltriethoxysilane. After silanized chitosan were added to the diluted in 1% acetic acid. The materials were centrifuged and placed in an oven at 60 °C for solvent evaporation. ZnAl1.9Eu0.1O4 nanoparticles silanized had a ZnAl2O4 major phase and second phase EuAlO3. After functionalized ZnAl1.9Eu0.1O4 nanoparticles showed characteristic crystalline phase of spinel and chitosan. The FTIR spectrum showed absorption bands characteristic of C=O, axial deformation of - CN and Si-O bands from the silane agent. By analysis SEM, observed in the chitosan impregnated particles of approximately spherical form, containing amorphous and crystalline phases, with smaller particles and larger 5μm. The higher mass loss was 88.3% observed for the functionalized chitosan nanoparticles.