Preparation and kinetic study of magnetic Ca/Fe3O4@SiO2 nanocatalysts for biodiesel production

Ca/Fe3O4@SiO2 nanocatalysts were prepared. The activity of optimal catalyst was studied at different operational conditions. Ea = 47.03 kJ, ΔH = 112.56 kJ mol−1 and ΔS = 298.63 J mol−1 K−1 were obtained.