Adsorption of methylene blue onto CoFe2O4 spinel ferrite nanoparticles
The influence of the synthesis method (chemical co-precipitation, sol-gel method) on the structure and morphology of the CoFe2O4 nanoparticles was considered and characterized by X-ray powder diffraction (XRD), Fourier infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). Crystallite sizes of CoFe2O4 synthesized by zol-gel and co-precipitation methods range from 9 to 42 nm. The adsorption property of spinel ferrites in relation to organic dye methylene blue was described. The influence of initial dye concentration at the adsorption capacity of magnetic spinel nanosorbents was considered. The adsorption of these dyes is well described by kinetic models of Langmuir. The adsorption isotherms show that the adsorption efficiency of CoFe2O4 nanoparticles, synthesized by co-precipitation method at 800 °C, is the highest because it has a larger degree of structure inversion.
adsorption, spinel, ferrite, CoFe2O4, adsorbent, methylene blue, dye, adsorption isotherms
Tatarchuk T. Adsorption of methylene blue onto CoFe2O4 spinel ferrite nanoparticles / T. Tatarchuk, N. Paliychuk. // Магістеріум. - 2016. - Вип. 63 : Хімічні науки. - С. 81-87.