Fabrication of super basic BaxMg(1-x)Fe2O4 magnetic spinel nanocatalyst toward biodiesel production

Magnetic BaxMg1-xFe2O4 (x = 0, 0.1, 0.2 and 0.3) supports were successfully fabricated by the solution combustion synthesis method. Then, the synthesized supports were impregnated with barium oxide to achieve basic nanocatalysts to produce biodiesel from sunflower oil. Various physicochemical analyses such as XRD, FESEM, EDX, TEM, BET-BJH, VSM, FTIR, TPD-CO2, and TG were carried out to characterize the synthesized nanocatalysts. The characteristic results demonstrated that the addition of Ba to magnesium ferrite support slightly increases the crystallinity and decreases the particle size. So, the best physicochemical properties are related to the BaO/Ba0.2Mg0.8Fe2O4 sample, which led to better catalytic activity that 97.5% conversion was achieved. The reusability of prepared nanocatalysts was also examined that slight deviation after 6 experiments was detected.

Automated summary

Magnetic BaxMg1-xFe2O4 (x = 0, 0.1, 0.2 and 0.3) supports were fabricated by solution combustion synthesis and impregnated with barium oxide to form basic nanocatalysts for biodiesel production. Various analyses showed that the addition of Ba slightly increased crystallinity and decreased particle size. The BaO/Ba0.2Mg0.8Fe2O4 sample demonstrated the best physicochemical properties and achieved 97.5% conversion, while the prepared nanocatalysts showed slight deviation after 6 experiments.